Patterns and Input/Output Tables — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Input 6 with rule multiply by 4 gives output 24.
6 times 4 equals 24, which is the correct Grade 4 output.
2. Input 15 with rule subtract 8 gives output 7.
15 minus 8 equals 7, the Grade 4 output for that rule.
3. If the rule is add 12 and the input is 9, the Grade 4 output is 21.
9 plus 12 equals 21, completing this Grade 4 function table row.
4. If the rule is divide by 3 and the input is 27, the Grade 4 output is 9.
27 divided by 3 equals 9, so the Grade 4 output is 9.
5. If output 32 came from input 8, the rule is multiply by 4.
32 divided by 8 equals 4, so the Grade 4 rule is multiply by 4.
6. If output 14 came from input 2, the Grade 4 rule is multiply by 7.
14 divided by 2 equals 7, so the Grade 4 rule is multiply by 7.
7. If input 11 and rule add 9 are given, the Grade 4 output is 20.
11 plus 9 equals 20, the correct Grade 4 output.
8. When the rule is subtract 6 and the output is 14, the Grade 4 input was 20.
Adding 6 back to 14 gives 20, so the Grade 4 input was 20.
9. When input 5 with rule multiply by 9 gives output 45.
5 times 9 equals 45, the Grade 4 output for this rule.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Input 8, rule add 15
→ Output 23
Output 23
Input 6, rule multiply by 7
→ Output 42
Output 42
Input 36, rule divide by 9
→ Output 4
Output 4
Input 14, rule subtract 9
→ Output 5
Output 5
8 plus 15 is 23, 6 times 7 is 42, 36 divided by 9 is 4, and 14 minus 9 is 5, giving the matches.