Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 106 · 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. 1.58 × 5 =
2. 2.27 × 5 =
3. 3.47 × 5 =
4. 4.95 × 5 =
5. 5.23 × 50 =
6. 6.53 × 50 =
7. 7.29 × 50 =
8. 8.90 × 50 =
9. 9.34 × 50 =
10. 10.39 × 5 =
11. 11.33 × 5 =
12. 12.30 × 50 =
13. 13.12 × 50 =
14. 14.97 × 50 =
15. 15.80 × 50 =
16. 16.81 × 5 =
17. 17.82 × 50 =
18. 18.22 × 5 =
19. 19.33 × 5 =
20. 20.27 × 50 =
21. 21.48 × 50 =
22. 22.45 × 50 =
23. 23.20 × 50 =
24. 24.96 × 5 =
25. 25.85 × 50 =
26. 26.25 × 50 =
27. 27.69 × 50 =
28. 28.28 × 50 =
29. 29.48 × 50 =
30. 30.59 × 5 =
31. 31.34 × 50 =
32. 32.50 × 50 =
33. 33.22 × 50 =
34. 34.92 × 50 =
35. 35.48 × 5 =
36. 36.62 × 50 =
37. 37.50 × 50 =
38. 38.93 × 50 =
39. 39.88 × 50 =
40. 40.91 × 5 =

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