Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 41 · 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. 1.9 × 15 =
2. 2.56 × 15 =
3. 3.42 × 15 =
4. 4.29 × 15 =
5. 5.39 × 15 =
6. 6.47 × 15 =
7. 7.14 × 15 =
8. 8.27 × 15 =
9. 9.28 × 15 =
10. 10.13 × 15 =
11. 11.39 × 15 =
12. 12.29 × 15 =
13. 13.51 × 15 =
14. 14.37 × 15 =
15. 15.63 × 15 =
16. 16.29 × 15 =
17. 17.9 × 15 =
18. 18.38 × 15 =
19. 19.10 × 15 =
20. 20.21 × 15 =
21. 21.52 × 15 =
22. 22.60 × 15 =
23. 23.19 × 15 =
24. 24.49 × 15 =
25. 25.14 × 15 =
26. 26.20 × 15 =
27. 27.33 × 15 =
28. 28.33 × 15 =
29. 29.38 × 15 =
30. 30.64 × 15 =
31. 31.41 × 15 =
32. 32.22 × 15 =
33. 33.38 × 15 =
34. 34.29 × 15 =
35. 35.17 × 15 =
36. 36.19 × 15 =
37. 37.36 × 15 =
38. 38.37 × 15 =
39. 39.28 × 15 =
40. 40.8 × 15 =

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