Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 396 · 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. 1.50 × 50 =
2. 2.87 × 50 =
3. 3.31 × 50 =
4. 4.58 × 50 =
5. 5.74 × 5 =
6. 6.56 × 5 =
7. 7.28 × 50 =
8. 8.35 × 5 =
9. 9.47 × 50 =
10. 10.62 × 50 =
11. 11.66 × 50 =
12. 12.67 × 50 =
13. 13.78 × 50 =
14. 14.42 × 50 =
15. 15.73 × 5 =
16. 16.18 × 50 =
17. 17.22 × 50 =
18. 18.85 × 5 =
19. 19.78 × 50 =
20. 20.89 × 5 =
21. 21.18 × 5 =
22. 22.55 × 50 =
23. 23.72 × 5 =
24. 24.89 × 5 =
25. 25.65 × 5 =
26. 26.42 × 50 =
27. 27.64 × 50 =
28. 28.16 × 50 =
29. 29.24 × 5 =
30. 30.67 × 50 =
31. 31.34 × 50 =
32. 32.85 × 5 =
33. 33.30 × 5 =
34. 34.68 × 50 =
35. 35.34 × 50 =
36. 36.33 × 5 =
37. 37.22 × 5 =
38. 38.81 × 5 =
39. 39.87 × 50 =
40. 40.89 × 5 =

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