Let’s work through each problem step by step.
We are told: “Using the same numbers, complete the second number sentences.”
That means for each row, we take the three numbers from the first equation and rearrange them to make a new equation using the inverse operation.
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Row 1:
First: 25 – 7 = 18
Inverse of subtraction is addition. So we use 18 + 7 = 25
→ Fill in: 18 +
7 =
25
Row 2:
First: 38 + 9 = 47
Inverse of addition is subtraction. So 47 – 9 = 38
→ Fill in: 47 –
9 =
38
Row 3:
First: 5 × 6 = 30
Inverse of multiplication is division. So 30 ÷ 6 = 5 (or 30 ÷ 5 = 6 — but since the box comes after ÷, we’ll use 6)
→ Fill in: 30 ÷
6 =
5
Row 4:
First: 45 ÷ 5 = 9
Inverse of division is multiplication. So 9 × 5 = 45
→ Fill in: 9 ×
5 =
45
Row 5:
First: 36 – 8 = 28
Inverse: addition. So 8 + 28 = 36
→ Fill in:
8 + 28 =
36
Row 6:
First: 56 + 8 = 64
Inverse: subtraction. So 64 – 8 = 56
→ Fill in:
64 – 8 =
56
Row 7:
First: 6 × 10 = 60
Inverse: division. So 60 ÷ 6 = 10
→ Fill in:
60 ÷ 6 =
10
Row 8:
First: 18 ÷ 2 = 9
Inverse: multiplication. So 9 × 2 = 18
→ Fill in:
9 × 2 =
18
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All answers checked and verified.
Final Answer:
1. 18 + 7 = 25
2. 47 – 9 = 38
3. 30 ÷ 6 = 5
4. 9 × 5 = 45
5. 8 + 28 = 36
6. 64 – 8 = 56
7. 60 ÷ 6 = 10
8. 9 × 2 = 18
Parent Tip: Review the logic above to help your child master the concept of inverse operations worksheet.
