Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 949 · 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. 1.41 × 50 =
2. 2.34 × 5 =
3. 3.98 × 5 =
4. 4.39 × 5 =
5. 5.32 × 50 =
6. 6.27 × 50 =
7. 7.52 × 5 =
8. 8.23 × 5 =
9. 9.41 × 5 =
10. 10.43 × 5 =
11. 11.35 × 5 =
12. 12.21 × 5 =
13. 13.56 × 5 =
14. 14.18 × 50 =
15. 15.84 × 5 =
16. 16.57 × 5 =
17. 17.28 × 5 =
18. 18.73 × 50 =
19. 19.86 × 50 =
20. 20.95 × 5 =
21. 21.41 × 50 =
22. 22.62 × 50 =
23. 23.35 × 5 =
24. 24.28 × 50 =
25. 25.51 × 50 =
26. 26.98 × 50 =
27. 27.77 × 5 =
28. 28.33 × 50 =
29. 29.27 × 50 =
30. 30.64 × 5 =
31. 31.13 × 5 =
32. 32.55 × 5 =
33. 33.61 × 50 =
34. 34.63 × 5 =
35. 35.15 × 5 =
36. 36.80 × 5 =
37. 37.28 × 5 =
38. 38.97 × 5 =
39. 39.94 × 5 =
40. 40.87 × 50 =

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