Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 590 · 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. 1.47 × 15 =
2. 2.35 × 15 =
3. 3.58 × 15 =
4. 4.10 × 15 =
5. 5.35 × 15 =
6. 6.11 × 15 =
7. 7.34 × 15 =
8. 8.8 × 15 =
9. 9.57 × 15 =
10. 10.10 × 15 =
11. 11.52 × 15 =
12. 12.8 × 15 =
13. 13.16 × 15 =
14. 14.64 × 15 =
15. 15.46 × 15 =
16. 16.52 × 15 =
17. 17.63 × 15 =
18. 18.45 × 15 =
19. 19.43 × 15 =
20. 20.45 × 15 =
21. 21.55 × 15 =
22. 22.36 × 15 =
23. 23.52 × 15 =
24. 24.15 × 15 =
25. 25.58 × 15 =
26. 26.53 × 15 =
27. 27.53 × 15 =
28. 28.22 × 15 =
29. 29.38 × 15 =
30. 30.59 × 15 =
31. 31.49 × 15 =
32. 32.30 × 15 =
33. 33.33 × 15 =
34. 34.17 × 15 =
35. 35.12 × 15 =
36. 36.46 × 15 =
37. 37.7 × 15 =
38. 38.63 × 15 =
39. 39.19 × 15 =
40. 40.11 × 15 =

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