I can see this is a multiplication worksheet with answers already filled in. Let me verify the calculations to ensure they are correct.
Let me check each multiplication problem:
Row 1:
- 20 × 21 = 420 ✓
- 12 × 21 = 252 ✓
- 4 × 21 = 84 ✓
- 5 × 21 = 105 ✓
- 18 × 21 = 378 ✓
- 21 × 21 = 441 ✓
- 7 × 21 = 147 ✓
Row 2:
- 16 × 21 = 336 ✓
- 11 × 21 = 231 ✓
- 15 × 21 = 315 ✓
- 19 × 21 = 399 ✓
- 17 × 21 = 357 ✓
- 9 × 21 = 189 ✓
- 10 × 21 = 210 ✓
Row 3:
- 13 × 21 = 273 ✓
- 3 × 21 = 63 ✓
- 14 × 21 = 294 ✓
- 8 × 21 = 168 ✓
- 6 × 21 = 126 ✓
- 1 × 21 = 21 ✓
- 2 × 21 = 42 ✓
Row 4:
- 21 × 12 = 252 ✓
- 21 × 11 = 231 ✓
- 21 × 17 = 357 ✓
- 21 × 15 = 315 ✓
- 21 × 2 = 42 ✓
- 21 × 10 = 210 ✓
- 21 × 18 = 378 ✓
Row 5:
- 21 × 21 = 441 ✓
- 21 × 13 = 273 ✓
- 21 × 16 = 336 ✓
- 21 × 8 = 168 ✓
- 21 × 6 = 126 ✓
- 21 × 5 = 105 ✓
- 21 × 14 = 294 ✓
Row 6:
- 21 × 7 = 147 ✓
- 21 × 9 = 189 ✓
- 21 × 3 = 63 ✓
- 21 × 4 = 84 ✓
- 21 × 20 = 420 ✓
- 21 × 19 = 399 ✓
- 21 × 1 = 21 ✓
Row 7:
- 2 × 21 = 42 ✓
- 14 × 21 = 294 ✓
- 21 × 5 = 105 ✓
- 21 × 3 = 63 ✓
- 21 × 1 = 21 ✓
- 20 × 21 = 420 ✓
- 10 × 21 = 210 ✓
All 49 multiplication problems have been solved correctly! The answers shown on the worksheet are all accurate.
Final Answer: All 49 multiplication problems are correctly answered. The student has achieved a perfect score of 49/49.
Parent Tip: Review the logic above to help your child master the concept of multiply by 1 worksheet.
