Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 6 · 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. 1.33 × 15 =
2. 2.12 × 15 =
3. 3.17 × 15 =
4. 4.18 × 15 =
5. 5.13 × 15 =
6. 6.28 × 15 =
7. 7.48 × 15 =
8. 8.40 × 15 =
9. 9.38 × 15 =
10. 10.23 × 15 =
11. 11.40 × 15 =
12. 12.26 × 15 =
13. 13.41 × 15 =
14. 14.55 × 15 =
15. 15.38 × 15 =
16. 16.10 × 15 =
17. 17.30 × 15 =
18. 18.34 × 15 =
19. 19.27 × 15 =
20. 20.28 × 15 =
21. 21.48 × 15 =
22. 22.17 × 15 =
23. 23.21 × 15 =
24. 24.37 × 15 =
25. 25.33 × 15 =
26. 26.34 × 15 =
27. 27.35 × 15 =
28. 28.33 × 15 =
29. 29.8 × 15 =
30. 30.9 × 15 =
31. 31.34 × 15 =
32. 32.4 × 15 =
33. 33.8 × 15 =
34. 34.54 × 15 =
35. 35.22 × 15 =
36. 36.22 × 15 =
37. 37.51 × 15 =
38. 38.26 × 15 =
39. 39.6 × 15 =
40. 40.55 × 15 =

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