Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 152 · 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. 1.88 × 50 =
2. 2.24 × 50 =
3. 3.85 × 5 =
4. 4.44 × 50 =
5. 5.23 × 5 =
6. 6.43 × 5 =
7. 7.58 × 5 =
8. 8.56 × 50 =
9. 9.85 × 50 =
10. 10.40 × 5 =
11. 11.77 × 5 =
12. 12.94 × 50 =
13. 13.83 × 5 =
14. 14.62 × 5 =
15. 15.93 × 50 =
16. 16.25 × 5 =
17. 17.19 × 5 =
18. 18.21 × 50 =
19. 19.87 × 5 =
20. 20.70 × 5 =
21. 21.43 × 50 =
22. 22.36 × 50 =
23. 23.96 × 5 =
24. 24.18 × 5 =
25. 25.90 × 5 =
26. 26.91 × 50 =
27. 27.54 × 5 =
28. 28.21 × 5 =
29. 29.71 × 5 =
30. 30.12 × 50 =
31. 31.30 × 50 =
32. 32.34 × 5 =
33. 33.83 × 5 =
34. 34.66 × 5 =
35. 35.71 × 5 =
36. 36.16 × 5 =
37. 37.37 × 5 =
38. 38.21 × 5 =
39. 39.23 × 5 =
40. 40.48 × 5 =

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