Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 436 · 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. 1.35 × 15 =
2. 2.9 × 15 =
3. 3.44 × 15 =
4. 4.50 × 15 =
5. 5.10 × 15 =
6. 6.13 × 15 =
7. 7.45 × 15 =
8. 8.29 × 15 =
9. 9.23 × 15 =
10. 10.21 × 15 =
11. 11.22 × 15 =
12. 12.45 × 15 =
13. 13.44 × 15 =
14. 14.28 × 15 =
15. 15.20 × 15 =
16. 16.49 × 15 =
17. 17.58 × 15 =
18. 18.43 × 15 =
19. 19.49 × 15 =
20. 20.31 × 15 =
21. 21.14 × 15 =
22. 22.26 × 15 =
23. 23.42 × 15 =
24. 24.31 × 15 =
25. 25.58 × 15 =
26. 26.36 × 15 =
27. 27.30 × 15 =
28. 28.22 × 15 =
29. 29.39 × 15 =
30. 30.49 × 15 =
31. 31.10 × 15 =
32. 32.35 × 15 =
33. 33.33 × 15 =
34. 34.60 × 15 =
35. 35.53 × 15 =
36. 36.31 × 15 =
37. 37.8 × 15 =
38. 38.40 × 15 =
39. 39.37 × 15 =
40. 40.47 × 15 =

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