Texas Instruments TI-10 User Manual

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TI-10

Calculator and Arithmetic Trainer

General Information

The TI-10 has two power sources — battery and solar. It operates in well-lit areas using the solar cell, and it operates in other light settings using the battery.

Examples

keystroke sequences that demonstrate many of TI-10 functions and capabilities. Before starting each problem set, reset and clear the TI-10 by pressing ensure that your displays are the same as those shown in the examples. In Problem Solving displays will vary from those shown in the examples because the problems presented by the TI-10 are random.

On/Off

To turn the TI-10 on, press −. If the TI-10 is on, press If you do not press any keys for about five minutes, the

Automatic Power Down™ (APD™) feature turns off the TI-10 automatically. After APD, press The display, all pending operations, settings, and memory (including history) are retained.

Two-Line Display and Scrolling

The TI-10 has a two-line display that shows up to 11 characters at a time on each line. Entries that do not fit on the first line wrap to the second. When the second line is filled, the characters scroll up.

Entries can be up to 88 characters. (Stored Operation), the limit is 44 characters. For (Problem Solving) wrap; entries cannot exceed 11 characters.

When a result exceeds the capacity of the display, it is shown in scientific notation. However, if the result is greater than 10 is less than 10

Scroll using these keys:

Clearing, Correcting, and Resetting

”

| |

: See the “Examples” page for problems with

. This helps to

b”

AUTO

mode, however,

−

to turn it off.

−

to power up again.

−

# $

Exceptions

MAN

(manual) mode, entries do not

OVERFLOW ERROR

, an

UNDERFLOW ERROR

, an

", !

Press " and ! to scroll through entries or to move the underline from one item to another within a menu.

Press # and $ to scroll through history or to move between menus when the menus are displayed.

Deletes the character to the left of the cursor.

Only clears the display and error condition. Does not clear value from memory, mode settings, etc.

Clears the value from memory. Resets the TI-10 clearing the calculator

completely and restoring all default settings. Press ” to clear the display.

You can also reset by:

Using the Calculator/Problem Solving menus.

Pressing − and ” simultaneously.

is displayed; if the result

, #, and $.

MEM CLEARED

RESET

menu. See

Op1

: For

‹

is displayed.

” w

is displayed.

Display Indicators

Indicator Definition

‹

Fix M Op1 Auto

TI-10 is in the Problem Solving tool. TI-10 is in the Place Value feature.

TI-10 is rounding results. A value other than zero is in memory. Stored operation is active. Problem Solving (‹) is in

mode. When using W, result will be displayed in

decimal format. More entry history or menus are available.

Press An entry extends beyond the capacity of the

display. Press

(up) or $ (down) to access.

!or"

AUTO

to scroll.

(automatic)

Calculator / Problem Solving Menus

Press Calculator Tool

‡

$$$

‡

Press Problem Solving Tool (AUTO)

‡

Press Problem Solving Tool (MAN)

‡"® ‡"®$

Once in a menu:

To underline a menu item, press !or".

To select the underlined item, press ®.

To exit a menu, press

Note:

To select an option from the Place Value menu, the TI-10 must be in mode.

Pressing temporarily displays the Scoreboard before the

MAN

‡

menu is displayed.

+ 1 Y

AUTO 1 +

AUTO MAN 11 -.

‡

(Problem Solving)

‹

while in the ‹ (Problem Solving) tool

(Division result format)

2 3

- Q P ?

- 1 -.

(Show or hide OP)

(Clear stored operation)

(Reject or select

MAN

(Automatic or Manual) (Level of Difficulty)

(Type of Operation)

(Automatic or Manual) (Place Value feature)

MAN

RESET

(manual)

AUTO /

)

Order of Operations

The TI-10 uses the Equation Operating System (EOS evaluate expressions.

1st Expressions inside parentheses. 2nd Functions that require a closing parenthesis ) and

precede the argument. 3rd Negation (N). 4th Multiplication, implied multiplication, division. 5th Addition and subtraction. 6th Z completes all operations.

Basic Arithmetic

q, h, i, j,

k, l, m, n o, p

T, U, V,

r M

T U V W r M X Y Z

Enters the numerals 0 through 9.

Adds, subtracts, multiplies, divides. Inserts a decimal point. Enters a negative sign. (Does not act as

an operator.) Opens, closes a parenthetical

expression. Completes all operations.

) to

-1-

Division

When you divide a positive whole number by a positive whole number using

, where Q is the quotient and R is the remainder. For

r R

example, if you are in the QR setting: 12

, the result is displayed in the form

5 = 2 r 2.

If you use the result of QR division in a subsequent calculation, the TI-10 uses only the quotient. The remainder is dropped.

For decimal results, select the decimal division setting by pressing previous answer as a decimal. For example: 12

Memory

‡"

. Press ‡ ® to see the

5 = 2.4.

` a |

After a calculation, press ` to add the displayed result to the value in memory or a to subtract the displayed result from the value in memory. Whenever memory contains a value other than 0, M displays on the screen.

To recall the value from memory for use in a calculation,

press To clear memory, press

Stored Operation

stores an operation with a constant value. You can

Op1

once.

twice.

›

then repeat this stored operation as many times as desired by pressing a single key —

1. Press ›.

2. Enter the operator first (+, -,

›

3. Press

4. Initialize with a starting value.

5. Each time you press applied.

›

Q, P

) and then the number.

›

, the operation with the constant is

The computation with the stored operation appears in the first line of the display, and the result appears in the second line.

To hide the computation line:

‡$"

1. Press

‡

2. Press

3. Continue pressing

(to underline ?, if necessary) ®.

again to return to the stored operation.

›

If the expression does not fit on the line, it will not show. When display space permits, a counter on the second line shows how many times you have pressed

To clear the contents of

‡

1. Press

2. Select Y (yes), if necessary.

3. Press

4. Press

the TI-10 also clears

”

or ‡ to return to the last result display. Resetting

Rounding

Op1

Š  ‘ ’ “ ˜ ™

›

You can round results using Š in conjunction with the Place Value keys to specify a given number of places. The internally stored value is not rounded. The calculated value is padded with zeros as needed. You must press

each

time you want to change the number of places.

Keys Action

Š 

Š ‘

Š ’

Š “

Š ˜

Š ™

Š r

Rounds to thousands. Rounds to hundreds. Rounds to tens. Rounds to ones. Rounds to nearest tenth. Rounds to nearest hundredth. Removes fixed-decimal setting.

These Place Value keys also work with Œ. See Place Value.

Problem Solving

‹  [ \

Problem Solving lets you practice and test your skills. To enter Problem Solving, press You can choose either

AUTO



(automatic) or

MAN

(manual)

mode.

AUTO Mode

‹

(Problem Solving)

mode (the default), the TI-10

AUTO

presents problems with one element missing, for example: 5+2=? or 5+?=7 or 5?2=7. You can select the type of problem and choose from three levels of difficulty. The default is addition at Level 1.

Level of Difficulty

. While in

‹

mode, press

AUTO

‡

to access the menu. Press " or ! to select the level of difficulty (1, 2, or 3). Press ® ‡, and the TI-10 will present problems at the selected level. Or, while in

‹

mode, press c to advance to the next level. After Level

3, pressing c again returns you to Level 1.

Type of Problem

‡

the type of problem — addition (+), subtraction ( multiplication (

‡, and the TI-10 will present problems of the

. While in ‹

mode, press

AUTO

to access the menu. Press " or ! to select

), division (P), or find the operator (?). Press

selected type.

Procedure.

1. Enter an answer and press

2. If your answer is correct, the display shows

3. If your answer is not correct, the display shows

4. The incorrect answer is cleared from the display so you can enter

5. If you enter three incorrect answers to a given problem, the TI-10

Scoreboard

When a problem is presented:

YES

screen, and presents another problem.

whether the correct solution is less than answer that you entered.

another answer to that same problem.

shows the correct answer, clears that problem, and presents a new problem.

, clears the

and indicates

or greater than > the

. The TI-10 shows a Scoreboard after every fifth

problem. Every correct solution you entered registers one

in the Scoreboard, and three incorrect answers in a row

YES

in the Scoreboard. After 100, the

Scoreboard returns to zero. Press

‡

Scoreboard is then replaced by the a few seconds. Press

to display the Scoreboard at any time. The

‡

AUTO / MAN

again to return to the problem.

menu after

MAN Mode

‹

Using

(Problem Solving)

(manual) mode, you can

MAN

compose your own problems.

1. Press ‡ to access the menu.

2. Press

to underline

MAN

3.Press ® ‡. The TI-10 is ready for you to enter your problem and your

solution. The TI-10 accepts only non-negative integers in



this mode. To indicate a missing element, press In

‹

(Problem Solving), press ] to change between

and

AUTO

display when Problem Solving In

‹

MAN

mode.

shows in the top line of the

Auto

AUTO

is selected.

mode, it is possible to enter a problem that has

one solution, multiple solutions, or no solution. The TI-10 tells you how many solutions the problem has.

Problems with one missing element generally have only one solution. You get three tries. After three incorrect answers, the calculator displays the correct answer and then clears the display so you can enter a new problem.

Problems with two missing elements may have multiple solutions. For example: ?+?=5 has 6 solutions; ?x?=24 has 8 solutions. For multiple-solution problems, the question mark replaces the operands. Question marks may not appear in the place of the operator or the answer. These problems are not cleared after a correct solution or after three incorrect answers. Instead, the problem remains so that you can enter other solution sets. To clear the problem at any time, press

When the answer to a problem is not a positive integer (such as

2), the TI-10 indicates that the problem has zero solutions.

”

-2-

However, if you enter an answer, it will tell you whether your answer is less than

Inequalities

. Instead of entering an equation, you can test an

inequality using

or greater than > the correct answer.

[

or \. You get only one try because the inequality statement is either true or false. With inequalities you can enter decimals.

To exit Problem Solving, press



again. All Problem

Solving history will be cleared.

Place Value

In ‹ (Problem Solving) Place Value menu by pressing

What is the place value of a given digit?

determine the whole number place or the decimal place of a given digit, press

For a number with a repeated digit, press the given digit once for the first occurrence, twice for the second occurrence, etc. Each time you press the given digit in succession, the display shifts to the next occurrence of the digit to the left of the first occurrence and shows the place value for that occurrence.

How many ones, tens, hundreds, thousands, tenths, or

hundredths are in a given number?

underline number to be analyzed,

press Œ, and then press “, ’,

What digit of a number is in a given place?

underline analyzed, press or press another digit or Place Value key.

Once Place Value is active, it is not necessary to press

and then press the digit in question.

11 -.

(default), and press

- 1 -.

, and press

™

. The answer appears briefly and then clears so you can

Œ  ‘ ’ “ ˜ ™

mode, you can access the

MAN

‡

Enter a number. To

‡

Press

‡. Enter the

‘, , ˜

® ‡

, and then press “, ’, ‘, , ˜,

. Enter the number to be

Press

, if necessary

, or ™.

‡

before each digit or place that you wish to examine for a

”

given number. You must press

before entering a new number to analyze. Then you must activate Place Value again by pressing

To exit Place Value, press

”

Error Conditions

Arith Error Syn Error P 0 Error Mem Error Op Error

Overflow Error

Underflow Error

In some cases, ” restores the last display before the error message appeared.

Errors appear in history as

Arithmetical error. Syntax error. Attempting to divide by zero. Error in attempting to store entry in memory. Error following steps for using

Op1

Overflow. Result is too large for the display. Underflow. Result is too small for the display.

Error

In Case of Difficulty

If you get unexpected results:

Review the instructions to be certain calculations were entered correctly.

Check the mode (‡) setting and rounding (Œ) function.

Reset the TI-10. See Clearing, Correcting, and Resetting.

Check the battery to ensure that it is fresh and properly installed. See Battery Replacement. Change the battery when:

−

does not turn the unit on, or

−

the screen goes blank, or

−

you get unexpected results.

To continue using the TI-10 until you can change the battery:

1. Expose the solar panel to brighter light.

2. Reset the TI-10. See Clearing, Correcting, and Resetting.

Battery Replacement

The TI-10 uses the CR2025 battery, or the equivalent.

1. Place the protective cover over the TI-10, and then turn the

calculator face down.

2. Remove the screws from the back of the case, using a small Phillips screwdriver.

3. Carefully separate the front from the back, starting from the bottom of the case.

Caution:

Be careful not to damage any internal parts.

4. Remove the old battery, using a small Phillips screwdriver, if necessary.

5. Replace with a new battery, and then replace the back of the case.

Caution:

Avoid contact with other TI-10 components while

changing the battery.

6. If necessary, reset the TI-10. See Clearing, Correcting, and Resetting.

Caution:

Dispose of old batteries properly. Do not incinerate

batteries or leave where a child can find them.

TI Product Service and Warranty Information

For General Information

E-mail: ti-cares@ti.com Phone: 1

Home Page: education.ti.com

800.TI.CARES (1.800.842.2737)

For U.S., Canada, Mexico, Puerto Rico, and Virgin Islands only

For Technical Questions

Phone: 1.972.917.8324

For Product (hardware) Service Customers in the U.S., Canada, Mexico, Puerto Rico and

Virgin Islands:

Always contact Texas Instruments

Customer Support before returning a product for service.

All other customers:

Refer to the leaflet enclosed with this product (hardware) or contact your local Texas Instruments retailer/distributor.

1-Year Limited Warranty

Customers in the U.S. and Canada Only—One-Year Limited Warranty for Commercial Electronic Product

This Texas Instruments (“TI”) electronic product warranty extends only to the original purchaser and user of the product.

Warranty Duration.

original purchaser for a period of one (1) year from the original purchase date.

Warranty Coverage.

defective materials and construction.

THE PRODUCT HAS BEEN DAMAGED BY ACCIDENT OR UNREASONABLE USE, NEGLECT, IMPROPER SERVICE, OR OTHER CAUSES NOT ARISING OUT OF DEFECTS IN MATERIALS OR CONSTRUCTION.

Warranty Disclaimers. ANY IMPLIED WARRANTIES ARISING OUT OF THIS SALE, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE ABOVE ONE-YEAR PERIOD. TEXAS INSTRUMENTS SHALL NOT BE LIABLE FOR LOSS OF USE OF THE PRODUCT OR OTHER INCIDENTAL OR CONSEQUENTIAL COSTS, EXPENSES, OR DAMAGES INCURRED BY THE CONSUMER OR ANY OTHER USER.

Some states/provinces do not allow the exclusion or limitation of implied warranties or consequential damages, so the above limitations or exclusions may not apply to you.

Legal Remedies.

you may also have other rights that vary from state to state or province to province.

Warranty Performance.

period, your defective product will be either repaired or replaced with a reconditioned model of an equivalent quality (at TI’s option) when the product is returned, postage prepaid, to Texas Instruments Service Facility. The warranty of the repaired or replacement unit will continue for the warranty of the original unit or six (6) months, whichever is longer. Other than the postage requirement, no charge will be made for such repair and/or replacement. TI strongly recommends that you insure the product for value prior to mailing.

Software is licensed, not sold. TI and its licensors do not

Software.

warrant that the software will be free from errors or meet your specific requirements.

product are protected by copyright.

All Customers outside the U.S. and Canada

For information about the length and terms of the warranty, refer to your package and/or to the warranty statement enclosed with this product, or contact your local Texas Instruments retailer/distributor.

This TI electronic product is warranted to the

This TI electronic product is warranted against

This warranty gives you specific legal rights, and

During the above one (1) year warranty

All software is provided “AS IS.”

The software and any documentation supplied with this

THIS WARRANTY IS VOID IF

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− T U V W Z ! "

−−

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(continued)

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6T21

6+21

”

2T3

7U4

2V4

6W3

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! "

# #

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”

1T1

2+3= 5

7N4= 3

2Q4= 8

6P3= 2 r 0

2+3= 5 7N4= 3

7N4= 3 2Q4= 8

74N42= 32

1+1= 2

wwZ

7T3

!!w6Z

6U5

wwT4Z

W ‡

”

9W4

‡"®

”

9W4

r ‡

”

6+2= 8

6+3= 9

6+4= 10

9P4 2 r 1

9P4= 2 r 1

9P4= 2.25

1T2

1T3

1T4

# ###

” w

”

6T33

””

1+2= 3

1+3= 4

1+4= 5

1+1= 2 1+2= 3

1+2= 3 1+3= 4

1+3= 4 1+4= 5

6+33

6r3T2r4

4r2V3r1

‡"

96r3W2r52

”

TM2Z

UM2Z

VM2Z

6.3+2.4= 8.7

4.2Q3.1=

96.3P2.52=

38.21428571

5+ -2= 3

5N -2= 7

4Q -2= -8

13.02

Ù ê

6T1

6+1= 7

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X Y

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”

3V4T2

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3Q4+2= 14

3Q(4+2)= 18

Š ˜ ™ “ ’ ‘ 

Š Š 

Š ‘Š ‘

Š ’Š ’

Š “Š “

Š ˜Š ˜

(continued)

Fix

4000.

Fix

4100.

Fix

4130.

Fix

4128.

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4128.4

4T2

1T1

T1Z

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›

”

›

›T1›

›

###

Š ˜ ™ “ ’ ‘ 

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42r394V97r3

4+2= 6

1+1= 2

4+1= 5

Op1

1+1 12

Op1

2+1 23

Op1

3+1 34

Op1

4+1 45

Op1

1+1= 2 2+1= 3

Op1

2+1= 3 3+1= 4

4128.412508

Š ™Š ™

Š r

‹

”

‹‹

Fix

4128.41

4128.412508

Auto

‹

8+3=?

Auto

‹

8+3=11

YES

Auto

‹

3+?=8

Auto

‹

3+5=8

YES

Auto

‹

9+7=?

Auto

‹

9+7>15

Auto

‹

9+7<18

Auto

‹

9+7<17

Auto

‹

9+7=16

YES

Auto

‹

4+?=6

Auto

‹

4+2=6

YES

Auto

‹

8+?=13

Auto

‹

8+5=13

YES

Auto

‹

YES NO

4 1

-5-

‹ ‡

”

1 2 3

‹‡$"

‡

406

+ N Q P ?

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‡

400

‡ ‡

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6+400=?

Auto

‹

6+400=406

YES

Auto

‹

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10Q40=?

Auto

‹

10Q40=400

YES

Auto

‹

70N40=?

Auto

‹

70N40>20

Auto

‹

70N40=30

YES

‹

AUTO MAN

‹

14N?=10

‹

14N4=10

YES

‹

?Q?=24

‹

8Q3=24

YES

‹

?Q?=24

‹

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Texas Instruments TI-10 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual