Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 291 · 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. 1.29 × 50 =
2. 2.64 × 50 =
3. 3.98 × 5 =
4. 4.50 × 50 =
5. 5.96 × 50 =
6. 6.82 × 50 =
7. 7.22 × 5 =
8. 8.38 × 50 =
9. 9.86 × 50 =
10. 10.90 × 50 =
11. 11.83 × 50 =
12. 12.23 × 50 =
13. 13.58 × 50 =
14. 14.82 × 50 =
15. 15.34 × 50 =
16. 16.61 × 50 =
17. 17.23 × 50 =
18. 18.80 × 5 =
19. 19.73 × 5 =
20. 20.29 × 50 =
21. 21.44 × 50 =
22. 22.22 × 50 =
23. 23.31 × 50 =
24. 24.44 × 5 =
25. 25.63 × 50 =
26. 26.97 × 50 =
27. 27.47 × 5 =
28. 28.82 × 50 =
29. 29.13 × 5 =
30. 30.89 × 5 =
31. 31.52 × 5 =
32. 32.34 × 50 =
33. 33.36 × 50 =
34. 34.74 × 5 =
35. 35.19 × 50 =
36. 36.92 × 5 =
37. 37.19 × 5 =
38. 38.87 × 50 =
39. 39.69 × 5 =
40. 40.16 × 5 =

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