Multiply by 12, 16, 18 and 24 Worksheet

Maths tricks trick 19: Factor chains for multiplying · Set 470 · 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. 1.26 × 18 =
2. 2.37 × 12 =
3. 3.19 × 14 =
4. 4.48 × 24 =
5. 5.31 × 18 =
6. 6.11 × 14 =
7. 7.17 × 16 =
8. 8.17 × 24 =
9. 9.43 × 14 =
10. 10.20 × 14 =
11. 11.22 × 18 =
12. 12.39 × 16 =
13. 13.32 × 18 =
14. 14.11 × 24 =
15. 15.23 × 12 =
16. 16.25 × 16 =
17. 17.48 × 12 =
18. 18.36 × 14 =
19. 19.42 × 15 =
20. 20.25 × 14 =
21. 21.15 × 24 =
22. 22.46 × 24 =
23. 23.40 × 15 =
24. 24.18 × 18 =
25. 25.42 × 24 =
26. 26.41 × 18 =
27. 27.42 × 18 =
28. 28.22 × 24 =
29. 29.19 × 15 =
30. 30.11 × 15 =
31. 31.27 × 12 =
32. 32.17 × 18 =
33. 33.43 × 15 =
34. 34.21 × 24 =
35. 35.13 × 16 =
36. 36.44 × 24 =
37. 37.35 × 12 =
38. 38.13 × 12 =
39. 39.14 × 12 =
40. 40.45 × 18 =

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