Math: Function Tables Input and Output Worksheet

Question 1

Rule: Add 2. If the input is 5, what is the output?

Accepted Answer

The output is 7 because 5 + 2 = 7.

Question 2

Rule: Add 3. Complete the table: Input 1 gives Output 4. Input 2 gives Output 5. Input 3 gives Output blank. What is the missing output?

Accepted Answer

The missing output is 6 because 3 + 3 = 6.

Question 3

Rule: Subtract 1. If the input is 9, what is the output?

Accepted Answer

The output is 8 because 9 - 1 = 8.

Question 4

Rule: Add 5. Complete the table: Input 0 gives Output 5. Input 1 gives Output 6. Input 4 gives Output blank. What is the missing output?

Accepted Answer

The missing output is 9 because 4 + 5 = 9.

Question 5

Rule: Double the input. If the input is 6, what is the output?

Accepted Answer

The output is 12 because double 6 means 6 + 6 = 12.

Question 6

Look at the pairs: 2 goes to 4, 3 goes to 6, and 5 goes to 10. What is the rule?

Accepted Answer

The rule is double the input because each output is two times the input.

Question 7

Rule: Add 10. Complete the table: Input 7 gives Output blank. Input 8 gives Output 18. Input 9 gives Output blank. What are the missing outputs?

Accepted Answer

The missing outputs are 17 and 19 because 7 + 10 = 17 and 9 + 10 = 19.

Question 8

Rule: Subtract 2. If the output is 6, what input was used?

Accepted Answer

The input was 8 because 8 - 2 = 6.

Question 9

Rule: Add 4. Complete the table: Input blank gives Output 10. What is the missing input?

Accepted Answer

The missing input is 6 because 6 + 4 = 10.

Question 10

Look at the table: Input 1 gives Output 3. Input 2 gives Output 4. Input 5 gives Output 7. What is the rule?

Accepted Answer

The rule is add 2 because each output is 2 more than the input.

Question 11

Rule: Subtract 3. Complete the table: Input 8 gives Output 5. Input 10 gives Output blank. Input 12 gives Output blank. What are the missing outputs?

Accepted Answer

The missing outputs are 7 and 9 because 10 - 3 = 7 and 12 - 3 = 9.

Question 12

Rule: Add 1. The inputs are 4, 5, and 6. What are the outputs?

Accepted Answer

The outputs are 5, 6, and 7 because each input has 1 added to it.

Question 13

A function machine uses the rule add 6. Nina puts in 3. What number comes out?

Accepted Answer

The number 9 comes out because 3 + 6 = 9.

Question 14

A function machine uses the rule double the input. Sam puts in 4, then 5, then 7. What numbers come out?

Accepted Answer

The numbers 8, 10, and 14 come out because double 4 is 8, double 5 is 10, and double 7 is 14.

Question 15

Look at the pairs: 6 goes to 4, 8 goes to 6, and 9 goes to 7. What is the rule?

Accepted Answer

The rule is subtract 2 because each output is 2 less than the input.

Math: Function Tables Input and Output