Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 309 · 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. 1.40 × 50 =
2. 2.12 × 50 =
3. 3.53 × 50 =
4. 4.60 × 5 =
5. 5.68 × 50 =
6. 6.18 × 50 =
7. 7.64 × 5 =
8. 8.95 × 50 =
9. 9.79 × 5 =
10. 10.88 × 50 =
11. 11.88 × 50 =
12. 12.47 × 50 =
13. 13.52 × 5 =
14. 14.21 × 5 =
15. 15.12 × 5 =
16. 16.34 × 50 =
17. 17.38 × 50 =
18. 18.18 × 50 =
19. 19.68 × 50 =
20. 20.88 × 50 =
21. 21.60 × 50 =
22. 22.68 × 5 =
23. 23.93 × 5 =
24. 24.35 × 50 =
25. 25.69 × 5 =
26. 26.86 × 5 =
27. 27.39 × 5 =
28. 28.88 × 5 =
29. 29.69 × 50 =
30. 30.85 × 50 =
31. 31.39 × 5 =
32. 32.50 × 50 =
33. 33.18 × 50 =
34. 34.47 × 50 =
35. 35.82 × 50 =
36. 36.28 × 50 =
37. 37.29 × 50 =
38. 38.35 × 50 =
39. 39.69 × 50 =
40. 40.45 × 50 =

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