Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 595 · 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. 1.91 × 50 =
2. 2.79 × 50 =
3. 3.44 × 5 =
4. 4.63 × 5 =
5. 5.43 × 50 =
6. 6.94 × 5 =
7. 7.24 × 5 =
8. 8.85 × 50 =
9. 9.87 × 5 =
10. 10.69 × 50 =
11. 11.67 × 5 =
12. 12.24 × 50 =
13. 13.63 × 5 =
14. 14.79 × 5 =
15. 15.35 × 5 =
16. 16.80 × 5 =
17. 17.24 × 5 =
18. 18.41 × 5 =
19. 19.56 × 5 =
20. 20.31 × 5 =
21. 21.94 × 50 =
22. 22.81 × 5 =
23. 23.18 × 50 =
24. 24.44 × 5 =
25. 25.73 × 5 =
26. 26.65 × 5 =
27. 27.12 × 5 =
28. 28.37 × 50 =
29. 29.98 × 5 =
30. 30.67 × 5 =
31. 31.77 × 50 =
32. 32.97 × 50 =
33. 33.65 × 5 =
34. 34.17 × 5 =
35. 35.78 × 5 =
36. 36.42 × 5 =
37. 37.58 × 50 =
38. 38.91 × 50 =
39. 39.84 × 50 =
40. 40.50 × 50 =

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