Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 775 · 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. 1.43 × 5 =
2. 2.75 × 50 =
3. 3.45 × 5 =
4. 4.93 × 5 =
5. 5.23 × 5 =
6. 6.57 × 5 =
7. 7.64 × 5 =
8. 8.35 × 5 =
9. 9.59 × 5 =
10. 10.49 × 50 =
11. 11.43 × 50 =
12. 12.24 × 5 =
13. 13.68 × 5 =
14. 14.73 × 50 =
15. 15.13 × 5 =
16. 16.65 × 5 =
17. 17.89 × 50 =
18. 18.34 × 50 =
19. 19.23 × 5 =
20. 20.83 × 50 =
21. 21.63 × 5 =
22. 22.93 × 5 =
23. 23.93 × 5 =
24. 24.23 × 5 =
25. 25.19 × 50 =
26. 26.34 × 50 =
27. 27.12 × 50 =
28. 28.56 × 50 =
29. 29.48 × 5 =
30. 30.44 × 50 =
31. 31.76 × 5 =
32. 32.41 × 50 =
33. 33.19 × 50 =
34. 34.94 × 5 =
35. 35.73 × 5 =
36. 36.63 × 50 =
37. 37.69 × 5 =
38. 38.31 × 5 =
39. 39.50 × 5 =
40. 40.53 × 5 =

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