Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 128 · 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. 1.37 × 15 =
2. 2.58 × 15 =
3. 3.59 × 15 =
4. 4.7 × 15 =
5. 5.17 × 15 =
6. 6.35 × 15 =
7. 7.62 × 15 =
8. 8.40 × 15 =
9. 9.5 × 15 =
10. 10.61 × 15 =
11. 11.18 × 15 =
12. 12.16 × 15 =
13. 13.62 × 15 =
14. 14.42 × 15 =
15. 15.49 × 15 =
16. 16.45 × 15 =
17. 17.49 × 15 =
18. 18.23 × 15 =
19. 19.42 × 15 =
20. 20.48 × 15 =
21. 21.60 × 15 =
22. 22.31 × 15 =
23. 23.35 × 15 =
24. 24.17 × 15 =
25. 25.27 × 15 =
26. 26.50 × 15 =
27. 27.47 × 15 =
28. 28.63 × 15 =
29. 29.59 × 15 =
30. 30.21 × 15 =
31. 31.19 × 15 =
32. 32.45 × 15 =
33. 33.39 × 15 =
34. 34.60 × 15 =
35. 35.12 × 15 =
36. 36.58 × 15 =
37. 37.40 × 15 =
38. 38.5 × 15 =
39. 39.13 × 15 =
40. 40.51 × 15 =

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