Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 942 · 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. 1.20 × 5 =
2. 2.44 × 50 =
3. 3.30 × 50 =
4. 4.86 × 5 =
5. 5.21 × 50 =
6. 6.73 × 5 =
7. 7.45 × 50 =
8. 8.21 × 50 =
9. 9.62 × 50 =
10. 10.34 × 5 =
11. 11.45 × 50 =
12. 12.82 × 50 =
13. 13.23 × 50 =
14. 14.46 × 50 =
15. 15.31 × 5 =
16. 16.31 × 50 =
17. 17.20 × 50 =
18. 18.90 × 5 =
19. 19.25 × 5 =
20. 20.18 × 50 =
21. 21.76 × 50 =
22. 22.98 × 5 =
23. 23.88 × 50 =
24. 24.69 × 5 =
25. 25.50 × 5 =
26. 26.12 × 50 =
27. 27.91 × 5 =
28. 28.84 × 50 =
29. 29.73 × 50 =
30. 30.89 × 50 =
31. 31.75 × 5 =
32. 32.76 × 5 =
33. 33.80 × 5 =
34. 34.95 × 5 =
35. 35.15 × 50 =
36. 36.35 × 50 =
37. 37.97 × 50 =
38. 38.85 × 50 =
39. 39.18 × 50 =
40. 40.23 × 5 =

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