Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 438 · 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. 1.75 × 50 =
2. 2.76 × 50 =
3. 3.32 × 5 =
4. 4.68 × 50 =
5. 5.45 × 5 =
6. 6.13 × 5 =
7. 7.20 × 50 =
8. 8.18 × 5 =
9. 9.33 × 5 =
10. 10.42 × 50 =
11. 11.89 × 5 =
12. 12.67 × 5 =
13. 13.94 × 5 =
14. 14.37 × 5 =
15. 15.28 × 5 =
16. 16.82 × 50 =
17. 17.33 × 5 =
18. 18.92 × 5 =
19. 19.45 × 50 =
20. 20.20 × 5 =
21. 21.91 × 5 =
22. 22.58 × 5 =
23. 23.78 × 5 =
24. 24.17 × 50 =
25. 25.35 × 5 =
26. 26.32 × 50 =
27. 27.18 × 5 =
28. 28.71 × 50 =
29. 29.14 × 5 =
30. 30.58 × 50 =
31. 31.70 × 5 =
32. 32.53 × 5 =
33. 33.54 × 5 =
34. 34.63 × 5 =
35. 35.74 × 5 =
36. 36.22 × 50 =
37. 37.78 × 50 =
38. 38.53 × 5 =
39. 39.19 × 5 =
40. 40.43 × 50 =

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