Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 239 · 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. 1.33 × 50 =
2. 2.76 × 50 =
3. 3.80 × 50 =
4. 4.52 × 5 =
5. 5.98 × 5 =
6. 6.24 × 50 =
7. 7.66 × 5 =
8. 8.21 × 50 =
9. 9.91 × 5 =
10. 10.15 × 5 =
11. 11.36 × 50 =
12. 12.16 × 5 =
13. 13.53 × 50 =
14. 14.67 × 50 =
15. 15.88 × 50 =
16. 16.28 × 5 =
17. 17.91 × 50 =
18. 18.61 × 5 =
19. 19.96 × 5 =
20. 20.79 × 5 =
21. 21.93 × 50 =
22. 22.28 × 5 =
23. 23.24 × 5 =
24. 24.45 × 50 =
25. 25.43 × 5 =
26. 26.32 × 50 =
27. 27.38 × 50 =
28. 28.12 × 5 =
29. 29.93 × 5 =
30. 30.90 × 5 =
31. 31.69 × 5 =
32. 32.44 × 5 =
33. 33.18 × 5 =
34. 34.87 × 50 =
35. 35.34 × 5 =
36. 36.22 × 5 =
37. 37.54 × 5 =
38. 38.35 × 5 =
39. 39.46 × 5 =
40. 40.28 × 50 =

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