Free Math Worksheets by Math-Drills - Free Printable

I need to solve all 20 multiplication problems on this worksheet. Each problem is a 2-digit by 2-digit multiplication. I’ll work through them one by one, carefully calculating each product.

Let me start with the first row:

1. 14 × 83
Break it down: 14 × 80 = 1120, and 14 × 3 = 42 → 1120 + 42 = 1162

2. 93 × 65
93 × 60 = 5580, 93 × 5 = 465 → 5580 + 465 = 6045

3. 82 × 50
Easy: 82 × 50 = 4100 (since multiplying by 50 is same as ×100 ÷2)

4. 77 × 11
Trick for ×11: 7+7=14 → write 4, carry 1 → 847? Wait: 77×11 = 77×(10+1)=770+77=847 ✓

5. 52 × 80
52 × 8 = 416, then add zero → 4160

Second row:

6. 24 × 83
24×80=1920, 24×3=72 → 1920+72=1992

7. 40 × 55
40×55 = 4×55×10 = 220×10 = 2200

8. 13 × 18
13×10=130, 13×8=104 → 130+104=234

9. 35 × 61
35×60=2100, 35×1=35 → 2100+35=2135

10. 15 × 51
15×50=750, 15×1=15 → 750+15=765

Third row:

11. 92 × 32
92×30=2760, 92×2=184 → 2760+184=2944

12. 25 × 65
25×60=1500, 25×5=125 → 1500+125=1625

13. 25 × 67
25×60=1500, 25×7=175 → 1500+175=1675

14. 96 × 17
96×10=960, 96×7=672 → 960+672=1632

15. 24 × 11
Again, ×11 trick: 2+4=6 → 264? Check: 24×10=240, 24×1=24 → 240+24=264 ✓

Fourth row:

16. 60 × 21
60×20=1200, 60×1=60 → 1200+60=1260

17. 13 × 54
13×50=650, 13×4=52 → 650+52=702

18. 28 × 53
28×50=1400, 28×3=84 → 1400+84=1484

19. 37 × 76
Let’s do 37×70=2590, 37×6=222 → 2590+222=2812

20. 57 × 57
This is 57 squared.
(50+7)² = 50² + 2×50×7 + 7² = 2500 + 700 + 49 = 3249
Or: 57×50=2850, 57×7=399 → 2850+399=3249 ✓

Now let me double-check a few that might be error-prone:

- Problem 3: 82×50 — yes, 82×5=410, so ×50=4100 ✔️
- Problem 4: 77×11 — 770+77=847 ✔️
- Problem 14: 96×17 — 96×10=960, 96×7: 90×7=630, 6×7=42 → 672; 960+672=1632 ✔️
- Problem 19: 37×76 — 37×70=2590? 30×70=2100, 7×70=490 → 2100+490=2590 ✔️; 37×6=222 ✔️; total 2812 ✔️
- Problem 20: 57×57 — confirmed 3249 ✔️

All calculations seem correct.

Final Answer:
1162, 6045, 4100, 847, 4160, 1992, 2200, 234, 2135, 765, 2944, 1625, 1675, 1632, 264, 1260, 702, 1484, 2812, 3249