Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 167 · 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. 1.98 × 50 =
2. 2.45 × 50 =
3. 3.21 × 50 =
4. 4.92 × 50 =
5. 5.60 × 50 =
6. 6.15 × 50 =
7. 7.78 × 5 =
8. 8.25 × 50 =
9. 9.84 × 5 =
10. 10.14 × 50 =
11. 11.59 × 50 =
12. 12.67 × 5 =
13. 13.20 × 5 =
14. 14.27 × 5 =
15. 15.33 × 50 =
16. 16.15 × 50 =
17. 17.27 × 5 =
18. 18.25 × 5 =
19. 19.96 × 50 =
20. 20.37 × 50 =
21. 21.14 × 5 =
22. 22.68 × 5 =
23. 23.13 × 50 =
24. 24.95 × 50 =
25. 25.56 × 50 =
26. 26.92 × 5 =
27. 27.97 × 5 =
28. 28.25 × 5 =
29. 29.33 × 50 =
30. 30.82 × 5 =
31. 31.16 × 50 =
32. 32.52 × 50 =
33. 33.97 × 50 =
34. 34.72 × 50 =
35. 35.28 × 5 =
36. 36.77 × 50 =
37. 37.86 × 5 =
38. 38.72 × 50 =
39. 39.21 × 5 =
40. 40.54 × 50 =

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