Let’s solve each multiplication problem using the
box method (also called area model). This means we break each number into tens and ones, multiply the parts in boxes, then add them up.
---
1) 27 × 13
Break 27 → 20 + 7
Break 13 → 10 + 3
Make a box:
| | 20 | 7 |
|-------|------|------|
|
10| 200 | 70 |
|
3 | 60 | 21 |
Now add all the boxes:
200 + 70 = 270
60 + 21 = 81
270 + 81 =
351
✔ Final Answer for #1:
351
---
2) 70 × 81
Break 70 → 70 + 0 (or just 70)
Break 81 → 80 + 1
Box:
| | 70 | 0 |
|-------|------|------|
|
80| 5600 | 0 |
|
1 | 70 | 0 |
Add:
5600 + 0 = 5600
70 + 0 = 70
Total: 5600 + 70 =
5670
✔ Final Answer for #2:
5670
---
3) 52 × 11
Break 52 → 50 + 2
Break 11 → 10 + 1
Box:
| | 50 | 2 |
|-------|------|------|
|
10| 500 | 20 |
|
1 | 50 | 2 |
Add:
500 + 20 = 520
50 + 2 = 52
Total: 520 + 52 =
572
✔ Final Answer for #3:
572
---
4) 24 × 56
Break 24 → 20 + 4
Break 56 → 50 + 6
Box:
| | 20 | 4 |
|-------|------|------|
|
50| 1000 | 200 |
|
6 | 120 | 24 |
Add:
1000 + 200 = 1200
120 + 24 = 144
Total: 1200 + 144 =
1344
✔ Final Answer for #4:
1344
---
5) 22 × 68
Break 22 → 20 + 2
Break 68 → 60 + 8
Box:
| | 20 | 2 |
|-------|------|------|
|
60| 1200 | 120 |
|
8 | 160 | 16 |
Add:
1200 + 120 = 1320
160 + 16 = 176
Total: 1320 + 176 =
1496
✔ Final Answer for #5:
1496
---
6) 43 × 89
Break 43 → 40 + 3
Break 89 → 80 + 9
Box:
| | 40 | 3 |
|-------|------|------|
|
80| 3200 | 240 |
|
9 | 360 | 27 |
Add:
3200 + 240 = 3440
360 + 27 = 387
Total: 3440 + 387 =
3827
✔ Final Answer for #6:
3827
---
Final Answer:
1) 351
2) 5670
3) 572
4) 1344
5) 1496
6) 3827
Parent Tip: Review the logic above to help your child master the concept of box model multiplication worksheet.
