Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 119 · 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. 2.41 × 15 =
3. 3.4 × 15 =
4. 4.64 × 15 =
5. 5.63 × 15 =
6. 6.17 × 15 =
7. 7.47 × 15 =
8. 8.38 × 15 =
9. 9.18 × 15 =
10. 10.25 × 15 =
11. 11.46 × 15 =
12. 12.35 × 15 =
13. 13.44 × 15 =
14. 14.53 × 15 =
15. 15.61 × 15 =
16. 16.28 × 15 =
17. 17.55 × 15 =
18. 18.58 × 15 =
19. 19.47 × 15 =
20. 20.29 × 15 =
21. 21.35 × 15 =
22. 22.41 × 15 =
23. 23.9 × 15 =
24. 24.30 × 15 =
25. 25.7 × 15 =
26. 26.53 × 15 =
27. 27.22 × 15 =
28. 28.23 × 15 =
29. 29.4 × 15 =
30. 30.35 × 15 =
31. 31.7 × 15 =
32. 32.13 × 15 =
33. 33.58 × 15 =
34. 34.52 × 15 =
35. 35.57 × 15 =
36. 36.54 × 15 =
37. 37.33 × 15 =
38. 38.8 × 15 =
39. 39.13 × 15 =
40. 40.13 × 15 =

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