Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 81 · 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. 1.32 × 50 =
2. 2.46 × 5 =
3. 3.50 × 50 =
4. 4.47 × 5 =
5. 5.73 × 50 =
6. 6.39 × 50 =
7. 7.45 × 5 =
8. 8.66 × 50 =
9. 9.15 × 50 =
10. 10.77 × 50 =
11. 11.18 × 50 =
12. 12.19 × 50 =
13. 13.96 × 5 =
14. 14.50 × 50 =
15. 15.34 × 50 =
16. 16.18 × 50 =
17. 17.21 × 50 =
18. 18.32 × 50 =
19. 19.76 × 5 =
20. 20.55 × 50 =
21. 21.53 × 5 =
22. 22.12 × 50 =
23. 23.70 × 5 =
24. 24.65 × 5 =
25. 25.15 × 50 =
26. 26.56 × 50 =
27. 27.43 × 50 =
28. 28.61 × 5 =
29. 29.15 × 5 =
30. 30.39 × 50 =
31. 31.72 × 50 =
32. 32.58 × 5 =
33. 33.18 × 50 =
34. 34.83 × 5 =
35. 35.41 × 5 =
36. 36.49 × 5 =
37. 37.83 × 5 =
38. 38.68 × 50 =
39. 39.95 × 5 =
40. 40.41 × 5 =

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