Finding Missing Numbers in Equations
Name: _______________________________
Date: _______________________________
Instructions: Find the missing number in each equation. Show your working out.
Part A: Addition and Subtraction
1.
15 + ☐ = 42
☐ = ________________
2.
☐ − 23 = 54
☐ = ________________
3.
67 − ☐ = 39
☐ = ________________
4.
☐ + 48 = 105
☐ = ________________
Part B: Multiplication and Division
5.
8 × ☐ = 56
☐ = ________________
6.
☐ ÷ 7 = 9
☐ = ________________
7.
72 ÷ ☐ = 8
☐ = ________________
8.
☐ × 12 = 144
☐ = ________________
Part C: Mixed Operations
9.
(☐ + 5) × 3 = 36
☐ = ________________
10.
48 ÷ ☐ − 2 = 6
☐ = ________________
11.
4 × (☐ − 7) = 20
☐ = ________________
12.
100 − ☐ × 5 = 65
☐ = ________________
Part D: Challenge Questions
13.
☐ × 6 + 15 = 63
☐ = ________________
14.
(120 − ☐) ÷ 8 = 11
☐ = ________________
15.
3 × ☐ − 14 = 40
☐ = ________________