Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 280 · 40 questions

The fast method (Halve first): Halve the number. × 5: multiply the half by 10. × 50: multiply the half by 100. Odd number? Its half ends in .5 — 43 → 21.5 — and × 10 moves the point: 215.

1. 1.82 × 5 =
2. 2.33 × 5 =
3. 3.57 × 5 =
4. 4.36 × 50 =
5. 5.74 × 5 =
6. 6.17 × 50 =
7. 7.12 × 5 =
8. 8.43 × 50 =
9. 9.87 × 5 =
10. 10.29 × 50 =
11. 11.29 × 5 =
12. 12.96 × 5 =
13. 13.64 × 50 =
14. 14.75 × 5 =
15. 15.21 × 5 =
16. 16.21 × 50 =
17. 17.38 × 50 =
18. 18.47 × 50 =
19. 19.14 × 5 =
20. 20.60 × 50 =
21. 21.12 × 5 =
22. 22.13 × 50 =
23. 23.36 × 5 =
24. 24.95 × 50 =
25. 25.14 × 50 =
26. 26.21 × 5 =
27. 27.54 × 50 =
28. 28.51 × 5 =
29. 29.73 × 50 =
30. 30.48 × 50 =
31. 31.93 × 50 =
32. 32.75 × 5 =
33. 33.40 × 50 =
34. 34.17 × 50 =
35. 35.97 × 50 =
36. 36.18 × 50 =
37. 37.88 × 5 =
38. 38.13 × 50 =
39. 39.38 × 5 =
40. 40.77 × 5 =

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