Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 945 · 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. 1.13 × 50 =
2. 2.59 × 50 =
3. 3.95 × 5 =
4. 4.22 × 50 =
5. 5.69 × 5 =
6. 6.41 × 5 =
7. 7.34 × 50 =
8. 8.16 × 50 =
9. 9.21 × 5 =
10. 10.17 × 5 =
11. 11.75 × 50 =
12. 12.28 × 5 =
13. 13.95 × 50 =
14. 14.57 × 50 =
15. 15.49 × 50 =
16. 16.37 × 5 =
17. 17.98 × 5 =
18. 18.82 × 5 =
19. 19.38 × 50 =
20. 20.79 × 50 =
21. 21.52 × 50 =
22. 22.46 × 5 =
23. 23.41 × 5 =
24. 24.65 × 5 =
25. 25.69 × 50 =
26. 26.80 × 50 =
27. 27.62 × 50 =
28. 28.30 × 5 =
29. 29.60 × 5 =
30. 30.47 × 5 =
31. 31.56 × 5 =
32. 32.43 × 5 =
33. 33.65 × 5 =
34. 34.63 × 5 =
35. 35.57 × 5 =
36. 36.94 × 5 =
37. 37.98 × 50 =
38. 38.16 × 50 =
39. 39.37 × 5 =
40. 40.15 × 50 =

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