Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 67 · 40 questions

The fast method (Ten and half again): Multiply by 10: 46 → 460. Halve that answer: half of 460 is 230. Add the two: 460 + 230 = 690.

1. 1.59 × 15 =
2. 2.15 × 15 =
3. 3.32 × 15 =
4. 4.12 × 15 =
5. 5.30 × 15 =
6. 6.58 × 15 =
7. 7.5 × 15 =
8. 8.52 × 15 =
9. 9.35 × 15 =
10. 10.47 × 15 =
11. 11.39 × 15 =
12. 12.31 × 15 =
13. 13.50 × 15 =
14. 14.4 × 15 =
15. 15.39 × 15 =
16. 16.48 × 15 =
17. 17.53 × 15 =
18. 18.42 × 15 =
19. 19.13 × 15 =
20. 20.37 × 15 =
21. 21.32 × 15 =
22. 22.4 × 15 =
23. 23.25 × 15 =
24. 24.31 × 15 =
25. 25.7 × 15 =
26. 26.32 × 15 =
27. 27.46 × 15 =
28. 28.30 × 15 =
29. 29.53 × 15 =
30. 30.24 × 15 =
31. 31.11 × 15 =
32. 32.43 × 15 =
33. 33.5 × 15 =
34. 34.15 × 15 =
35. 35.30 × 15 =
36. 36.24 × 15 =
37. 37.23 × 15 =
38. 38.31 × 15 =
39. 39.18 × 15 =
40. 40.15 × 15 =

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