Multiplying 2-Digit by 1-Digit Numbers (A) - Free Printable

Let's solve each of the 2-digit by 1-digit multiplication problems step by step. We'll calculate each product and show the work briefly.

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Problem Set: 2-Digit × 1-Digit Multiplication

We'll go row by row.

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#### Row 1
1. $ 72 \times 2 = (70 + 2) \times 2 = 70 \times 2 + 2 \times 2 = 140 + 4 = \boxed{144} $
2. $ 31 \times 8 = (30 + 1) \times 8 = 30 \times 8 + 1 \times 8 = 240 + 8 = \boxed{248} $
3. $ 73 \times 4 = (70 + 3) \times 4 = 70 \times 4 + 3 \times 4 = 280 + 12 = \boxed{292} $
4. $ 95 \times 9 = (90 + 5) \times 9 = 90 \times 9 + 5 \times 9 = 810 + 45 = \boxed{855} $
5. $ 11 \times 7 = (10 + 1) \times 7 = 70 + 7 = \boxed{77} $

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#### Row 2
6. $ 65 \times 9 = (60 + 5) \times 9 = 60 \times 9 + 5 \times 9 = 540 + 45 = \boxed{585} $
7. $ 74 \times 4 = (70 + 4) \times 4 = 70 \times 4 + 4 \times 4 = 280 + 16 = \boxed{296} $
8. $ 11 \times 9 = (10 + 1) \times 9 = 90 + 9 = \boxed{99} $
9. $ 24 \times 5 = (20 + 4) \times 5 = 20 \times 5 + 4 \times 5 = 100 + 20 = \boxed{120} $
10. $ 68 \times 9 = (60 + 8) \times 9 = 60 \times 9 + 8 \times 9 = 540 + 72 = \boxed{612} $

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#### Row 3
11. $ 99 \times 9 = (100 - 1) \times 9 = 900 - 9 = \boxed{891} $
12. $ 35 \times 3 = (30 + 5) \times 3 = 90 + 15 = \boxed{105} $
13. $ 56 \times 9 = (50 + 6) \times 9 = 450 + 54 = \boxed{504} $
14. $ 52 \times 4 = (50 + 2) \times 4 = 200 + 8 = \boxed{208} $
15. $ 83 \times 5 = (80 + 3) \times 5 = 400 + 15 = \boxed{415} $

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#### Row 4
16. $ 18 \times 4 = (10 + 8) \times 4 = 40 + 32 = \boxed{72} $
17. $ 71 \times 3 = (70 + 1) \times 3 = 210 + 3 = \boxed{213} $
18. $ 64 \times 4 = (60 + 4) \times 4 = 240 + 16 = \boxed{256} $
19. $ 69 \times 7 = (70 - 1) \times 7 = 490 - 7 = \boxed{483} $
20. $ 51 \times 3 = (50 + 1) \times 3 = 150 + 3 = \boxed{153} $

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#### Row 5
21. $ 49 \times 8 = (50 - 1) \times 8 = 400 - 8 = \boxed{392} $
22. $ 26 \times 5 = (20 + 6) \times 5 = 100 + 30 = \boxed{130} $
23. $ 60 \times 2 = \boxed{120} $
24. $ 20 \times 9 = \boxed{180} $
25. $ 23 \times 9 = (20 + 3) \times 9 = 180 + 27 = \boxed{207} $

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✔ Final Answers:

1. 144
2. 248
3. 292
4. 855
5. 77
6. 585
7. 296
8. 99
9. 120
10. 612
11. 891
12. 105
13. 504
14. 208
15. 415
16. 72
17. 213
18. 256
19. 483
20. 153
21. 392
22. 130
23. 120
24. 180
25. 207

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✔ Score: 25/25 (All correct!)

Let me know if you'd like this in a printable format or with explanations for any specific problem!