Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 451 · 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. 1.44 × 50 =
2. 2.98 × 5 =
3. 3.65 × 5 =
4. 4.43 × 50 =
5. 5.88 × 50 =
6. 6.51 × 5 =
7. 7.43 × 50 =
8. 8.37 × 50 =
9. 9.25 × 5 =
10. 10.23 × 5 =
11. 11.91 × 50 =
12. 12.55 × 5 =
13. 13.34 × 5 =
14. 14.32 × 5 =
15. 15.32 × 50 =
16. 16.56 × 5 =
17. 17.82 × 50 =
18. 18.64 × 50 =
19. 19.15 × 50 =
20. 20.64 × 50 =
21. 21.72 × 5 =
22. 22.21 × 50 =
23. 23.26 × 50 =
24. 24.69 × 5 =
25. 25.26 × 50 =
26. 26.51 × 5 =
27. 27.52 × 50 =
28. 28.92 × 5 =
29. 29.71 × 50 =
30. 30.87 × 50 =
31. 31.48 × 50 =
32. 32.70 × 50 =
33. 33.77 × 5 =
34. 34.41 × 5 =
35. 35.66 × 50 =
36. 36.77 × 50 =
37. 37.78 × 5 =
38. 38.23 × 5 =
39. 39.53 × 50 =
40. 40.70 × 50 =

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