Multiplication Worksheets: (2-Digit by 1-Digit Math Drills) - DIY ... - Free Printable

Let's solve each of the multiplication problems on the worksheet. Each problem involves multiplying a two-digit number by 7.

We'll go through them step-by-step using standard multiplication:

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Row 1

1. $ 56 \times 7 = (50 + 6) \times 7 = 50 \times 7 + 6 \times 7 = 350 + 42 = \boxed{392} $
2. $ 47 \times 7 = (40 + 7) \times 7 = 40 \times 7 + 7 \times 7 = 280 + 49 = \boxed{329} $
3. $ 15 \times 7 = (10 + 5) \times 7 = 70 + 35 = \boxed{105} $
4. $ 17 \times 7 = (10 + 7) \times 7 = 70 + 49 = \boxed{119} $
5. $ 11 \times 7 = (10 + 1) \times 7 = 70 + 7 = \boxed{77} $

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Row 2

6. $ 88 \times 7 = (80 + 8) \times 7 = 560 + 56 = \boxed{616} $
7. $ 10 \times 7 = \boxed{70} $
8. $ 13 \times 7 = (10 + 3) \times 7 = 70 + 21 = \boxed{91} $
9. $ 81 \times 7 = (80 + 1) \times 7 = 560 + 7 = \boxed{567} $
10. $ 41 \times 7 = (40 + 1) \times 7 = 280 + 7 = \boxed{287} $

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Row 3

11. $ 48 \times 7 = (40 + 8) \times 7 = 280 + 56 = \boxed{336} $
12. $ 86 \times 7 = (80 + 6) \times 7 = 560 + 42 = \boxed{602} $
13. $ 62 \times 7 = (60 + 2) \times 7 = 420 + 14 = \boxed{434} $
14. $ 12 \times 7 = (10 + 2) \times 7 = 70 + 14 = \boxed{84} $
15. $ 72 \times 7 = (70 + 2) \times 7 = 490 + 14 = \boxed{504} $

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Row 4

16. $ 70 \times 7 = \boxed{490} $
17. $ 73 \times 7 = (70 + 3) \times 7 = 490 + 21 = \boxed{511} $
18. $ 44 \times 7 = (40 + 4) \times 7 = 280 + 28 = \boxed{308} $
19. $ 98 \times 7 = (90 + 8) \times 7 = 630 + 56 = \boxed{686} $
20. $ 49 \times 7 = (40 + 9) \times 7 = 280 + 63 = \boxed{343} $

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Row 5

21. $ 35 \times 7 = (30 + 5) \times 7 = 210 + 35 = \boxed{245} $
22. $ 24 \times 7 = (20 + 4) \times 7 = 140 + 28 = \boxed{168} $
23. $ 46 \times 7 = (40 + 6) \times 7 = 280 + 42 = \boxed{322} $
24. $ 80 \times 7 = \boxed{560} $
25. $ 50 \times 7 = \boxed{350} $

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✔ Final Answers:

Here are all the solutions in order:

1. $ 56 \times 7 = 392 $
2. $ 47 \times 7 = 329 $
3. $ 15 \times 7 = 105 $
4. $ 17 \times 7 = 119 $
5. $ 11 \times 7 = 77 $
6. $ 88 \times 7 = 616 $
7. $ 10 \times 7 = 70 $
8. $ 13 \times 7 = 91 $
9. $ 81 \times 7 = 567 $
10. $ 41 \times 7 = 287 $
11. $ 48 \times 7 = 336 $
12. $ 86 \times 7 = 602 $
13. $ 62 \times 7 = 434 $
14. $ 12 \times 7 = 84 $
15. $ 72 \times 7 = 504 $
16. $ 70 \times 7 = 490 $
17. $ 73 \times 7 = 511 $
18. $ 44 \times 7 = 308 $
19. $ 98 \times 7 = 686 $
20. $ 49 \times 7 = 343 $
21. $ 35 \times 7 = 245 $
22. $ 24 \times 7 = 168 $
23. $ 46 \times 7 = 322 $
24. $ 80 \times 7 = 560 $
25. $ 50 \times 7 = 350 $

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🔍 How to Solve These:

For any two-digit number multiplied by 7:
- Break the number into tens and ones.
- Multiply each part by 7.
- Add the results together.

Example: $ 47 \times 7 $
- $ 40 \times 7 = 280 $
- $ 7 \times 7 = 49 $
- $ 280 + 49 = 329 $

This method helps avoid errors and builds understanding of place value.

Let me know if you'd like this as a printable answer key! 🌈✨