Multiply by 12, 16, 18 and 24 Worksheet

Maths tricks trick 19: Factor chains for multiplying · Set 534 · 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. 1.34 × 14 =
2. 2.47 × 12 =
3. 3.43 × 15 =
4. 4.19 × 14 =
5. 5.15 × 14 =
6. 6.43 × 14 =
7. 7.19 × 16 =
8. 8.33 × 12 =
9. 9.12 × 24 =
10. 10.11 × 18 =
11. 11.43 × 12 =
12. 12.28 × 15 =
13. 13.34 × 15 =
14. 14.44 × 12 =
15. 15.29 × 16 =
16. 16.26 × 24 =
17. 17.46 × 24 =
18. 18.35 × 15 =
19. 19.16 × 14 =
20. 20.20 × 12 =
21. 21.44 × 14 =
22. 22.38 × 18 =
23. 23.15 × 16 =
24. 24.26 × 16 =
25. 25.37 × 14 =
26. 26.20 × 14 =
27. 27.13 × 24 =
28. 28.35 × 14 =
29. 29.41 × 16 =
30. 30.37 × 18 =
31. 31.12 × 14 =
32. 32.12 × 15 =
33. 33.14 × 16 =
34. 34.36 × 16 =
35. 35.15 × 15 =
36. 36.29 × 15 =
37. 37.39 × 12 =
38. 38.22 × 18 =
39. 39.19 × 18 =
40. 40.29 × 18 =

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