Numerical Expressions — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Write an expression: Add 14 and 6, then multiply by 3. Answer: (14 + 6) × 3
Parentheses group the addition that must happen first: (14 + 6) × 3.
2. Evaluate: (14 + 6) × 3 = 60
(14 + 6) = 20. 20 × 3 = 60.
3. Write an expression: Subtract 7 from 25, then divide by 9. Answer: (25 − 7) ÷ 9
Parentheses group the subtraction that must happen first: (25 − 7) ÷ 9.
4. Evaluate: (25 − 7) ÷ 9 = 2
(25 − 7) = 18. 18 ÷ 9 = 2.
5. Write an expression: Multiply 8 by 5, then subtract 15. Answer: (8 × 5) − 15
Parentheses group the multiplication: (8 × 5) − 15.
6. Evaluate: (8 × 5) − 15 = 25
(8 × 5) = 40. 40 − 15 = 25.
7. Write an expression: Divide 36 by 4, then add 11. Answer: (36 ÷ 4) + 11
Parentheses group the division: (36 ÷ 4) + 11.
8. Evaluate: (36 ÷ 4) + 11 = 20
(36 ÷ 4) = 9. 9 + 11 = 20.
9. Evaluate: (12 + 8) × (30 ÷ 6) = 100
(12 + 8) = 20. (30 ÷ 6) = 5. 20 × 5 = 100.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Add 10 and 4, then multiply by 2
→ (10 + 4) × 2
(17 − 5) ÷ 4
Multiply 6 by 3, then subtract 8
→ (6 × 3) − 8
(10 + 4) × 2
Divide 24 by 8, then add 9
→ (24 ÷ 8) + 9
(6 × 3) − 8
Subtract 5 from 17, then divide by 4
→ (17 − 5) ÷ 4
(24 ÷ 8) + 9
Add 10 and 4, ×2 = (10+4)×2; multiply 6×3, −8 = (6×3)−8; divide 24÷8, +9 = (24÷8)+9; subtract 5 from 17, ÷4 = (17−5)÷4.