Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 808 · 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. 1.55 × 5 =
2. 2.45 × 5 =
3. 3.75 × 5 =
4. 4.65 × 5 =
5. 5.26 × 5 =
6. 6.65 × 5 =
7. 7.26 × 5 =
8. 8.35 × 5 =
9. 9.87 × 5 =
10. 10.29 × 5 =
11. 11.13 × 5 =
12. 12.50 × 5 =
13. 13.17 × 5 =
14. 14.85 × 50 =
15. 15.92 × 5 =
16. 16.42 × 5 =
17. 17.22 × 50 =
18. 18.20 × 50 =
19. 19.60 × 5 =
20. 20.26 × 50 =
21. 21.48 × 5 =
22. 22.51 × 5 =
23. 23.45 × 50 =
24. 24.89 × 50 =
25. 25.37 × 5 =
26. 26.31 × 50 =
27. 27.35 × 5 =
28. 28.54 × 5 =
29. 29.13 × 50 =
30. 30.57 × 5 =
31. 31.61 × 50 =
32. 32.53 × 50 =
33. 33.78 × 50 =
34. 34.90 × 50 =
35. 35.33 × 50 =
36. 36.47 × 50 =
37. 37.40 × 50 =
38. 38.98 × 5 =
39. 39.93 × 5 =
40. 40.79 × 50 =

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