Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 957 · 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. 1.68 × 50 =
2. 2.63 × 50 =
3. 3.42 × 50 =
4. 4.51 × 5 =
5. 5.65 × 50 =
6. 6.39 × 50 =
7. 7.89 × 50 =
8. 8.89 × 5 =
9. 9.40 × 50 =
10. 10.95 × 50 =
11. 11.26 × 5 =
12. 12.28 × 50 =
13. 13.71 × 50 =
14. 14.32 × 50 =
15. 15.65 × 5 =
16. 16.34 × 50 =
17. 17.98 × 50 =
18. 18.62 × 50 =
19. 19.15 × 50 =
20. 20.86 × 5 =
21. 21.28 × 50 =
22. 22.82 × 50 =
23. 23.27 × 50 =
24. 24.59 × 50 =
25. 25.23 × 5 =
26. 26.98 × 5 =
27. 27.47 × 5 =
28. 28.49 × 50 =
29. 29.35 × 5 =
30. 30.92 × 5 =
31. 31.95 × 5 =
32. 32.58 × 5 =
33. 33.87 × 5 =
34. 34.90 × 50 =
35. 35.85 × 50 =
36. 36.76 × 50 =
37. 37.51 × 50 =
38. 38.34 × 5 =
39. 39.15 × 5 =
40. 40.18 × 50 =

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