Multiply by 12, 16, 18 and 24 Worksheet

Maths tricks trick 19: Factor chains for multiplying · Set 710 · 40 questions

The trick (Chain the factors): Split the multiplier into two small factors: 12 = 3 × 4, 14 = 2 × 7, 15 = 3 × 5, 16 = 4 × 4, 18 = 2 × 9, 24 = 4 × 6. Multiply by the first factor. Multiply that answer by the second factor (× 4 is double, double).

1. 1.16 × 14 =
2. 2.40 × 14 =
3. 3.43 × 14 =
4. 4.19 × 16 =
5. 5.23 × 18 =
6. 6.20 × 14 =
7. 7.14 × 18 =
8. 8.29 × 16 =
9. 9.37 × 16 =
10. 10.13 × 16 =
11. 11.14 × 12 =
12. 12.28 × 16 =
13. 13.38 × 18 =
14. 14.41 × 24 =
15. 15.18 × 15 =
16. 16.42 × 14 =
17. 17.20 × 16 =
18. 18.28 × 15 =
19. 19.18 × 14 =
20. 20.17 × 12 =
21. 21.21 × 12 =
22. 22.38 × 16 =
23. 23.25 × 15 =
24. 24.42 × 12 =
25. 25.38 × 14 =
26. 26.32 × 18 =
27. 27.19 × 12 =
28. 28.15 × 15 =
29. 29.41 × 14 =
30. 30.23 × 14 =
31. 31.43 × 12 =
32. 32.40 × 15 =
33. 33.11 × 12 =
34. 34.46 × 24 =
35. 35.39 × 24 =
36. 36.48 × 24 =
37. 37.17 × 15 =
38. 38.27 × 12 =
39. 39.33 × 12 =
40. 40.22 × 14 =

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks