Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 565 · 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 × 5 =
2. 2.88 × 5 =
3. 3.32 × 50 =
4. 4.95 × 5 =
5. 5.34 × 50 =
6. 6.91 × 5 =
7. 7.38 × 5 =
8. 8.17 × 5 =
9. 9.77 × 5 =
10. 10.48 × 50 =
11. 11.46 × 5 =
12. 12.87 × 50 =
13. 13.84 × 5 =
14. 14.96 × 5 =
15. 15.86 × 5 =
16. 16.13 × 5 =
17. 17.81 × 5 =
18. 18.28 × 50 =
19. 19.96 × 5 =
20. 20.82 × 50 =
21. 21.80 × 50 =
22. 22.12 × 5 =
23. 23.12 × 50 =
24. 24.26 × 5 =
25. 25.43 × 50 =
26. 26.62 × 5 =
27. 27.15 × 5 =
28. 28.60 × 5 =
29. 29.44 × 50 =
30. 30.20 × 5 =
31. 31.34 × 50 =
32. 32.26 × 5 =
33. 33.64 × 50 =
34. 34.78 × 5 =
35. 35.73 × 50 =
36. 36.63 × 50 =
37. 37.26 × 50 =
38. 38.84 × 50 =
39. 39.43 × 5 =
40. 40.90 × 50 =

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