Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 598 · 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. 1.44 × 50 =
2. 2.15 × 5 =
3. 3.21 × 5 =
4. 4.83 × 5 =
5. 5.85 × 5 =
6. 6.48 × 50 =
7. 7.30 × 5 =
8. 8.44 × 5 =
9. 9.35 × 50 =
10. 10.23 × 5 =
11. 11.95 × 5 =
12. 12.26 × 50 =
13. 13.59 × 50 =
14. 14.62 × 5 =
15. 15.43 × 5 =
16. 16.15 × 50 =
17. 17.53 × 50 =
18. 18.15 × 5 =
19. 19.42 × 50 =
20. 20.84 × 5 =
21. 21.52 × 50 =
22. 22.31 × 50 =
23. 23.21 × 50 =
24. 24.92 × 5 =
25. 25.34 × 5 =
26. 26.29 × 50 =
27. 27.33 × 50 =
28. 28.29 × 50 =
29. 29.89 × 50 =
30. 30.16 × 50 =
31. 31.41 × 50 =
32. 32.50 × 50 =
33. 33.36 × 50 =
34. 34.49 × 5 =
35. 35.57 × 50 =
36. 36.13 × 5 =
37. 37.13 × 5 =
38. 38.54 × 50 =
39. 39.47 × 5 =
40. 40.51 × 50 =

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