Let's solve each multiplication problem on the worksheet step by step.
---
1. 22 × 2
Break it down:
- 20 × 2 = 40
- 2 × 2 = 4
- Add: 40 + 4 =
44
✔ Answer: 44
---
2. 43 × 2
- 40 × 2 = 80
- 3 × 2 = 6
- Add: 80 + 6 =
86
✔ Answer: 86
---
3. 43 × 3
- 40 × 3 = 120
- 3 × 3 = 9
- Add: 120 + 9 =
129
✔ Answer: 129
---
4. 14 × 4
- 10 × 4 = 40
- 4 × 4 = 16
- Add: 40 + 16 =
56
✔ Answer: 56
---
5. 22 × 4
- 20 × 4 = 80
- 2 × 4 = 8
- Add: 80 + 8 =
88
✔ Answer: 88
---
6. 34 × 5
- 30 × 5 = 150
- 4 × 5 = 20
- Add: 150 + 20 =
170
✔ Answer: 170
---
7. 64 × 5
- 60 × 5 = 300
- 4 × 5 = 20
- Add: 300 + 20 =
320
✔ Answer: 320
---
8. 86 × 6
- 80 × 6 = 480
- 6 × 6 = 36
- Add: 480 + 36 =
516
✔ Answer: 516
---
9. 72 × 7
- 70 × 7 = 490
- 2 × 7 = 14
- Add: 490 + 14 =
504
✔ Answer: 504
---
10. 24 × 8
- 20 × 8 = 160
- 4 × 8 = 32
- Add: 160 + 32 =
192
✔ Answer: 192
---
11. 92 × 2
- 90 × 2 = 180
- 2 × 2 = 4
- Add: 180 + 4 =
184
✔ Answer: 184
---
12. 35 × 9
- 30 × 9 = 270
- 5 × 9 = 45
- Add: 270 + 45 =
315
✔ Answer: 315
---
✔ Final Answers (in order):
1. 44
2. 86
3. 129
4. 56
5. 88
6. 170
7. 320
8. 516
9. 504
10. 192
11. 184
12. 315
---
📝 Explanation:
Each problem is a two-digit number multiplied by a single-digit number. The strategy used here is
breaking down the two-digit number into tens and ones, multiplying each part separately, then adding the results. This method uses the
distributive property of multiplication:
> $ (a + b) \times c = a \times c + b \times c $
For example:
$ 43 \times 3 = (40 + 3) \times 3 = 40 \times 3 + 3 \times 3 = 120 + 9 = 129 $
This makes mental math easier and helps avoid mistakes.
Let me know if you'd like a printable version or want to check your answers! 😊
Parent Tip: Review the logic above to help your child master the concept of multiplication two digit by one digit worksheet.
