Multiply by 12, 16, 18 and 24 Worksheet

Maths tricks trick 19: Factor chains for multiplying · Set 254 · 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. 1.48 × 14 =
2. 2.38 × 14 =
3. 3.11 × 15 =
4. 4.27 × 24 =
5. 5.25 × 15 =
6. 6.46 × 14 =
7. 7.12 × 12 =
8. 8.19 × 15 =
9. 9.48 × 24 =
10. 10.49 × 12 =
11. 11.24 × 16 =
12. 12.32 × 24 =
13. 13.19 × 14 =
14. 14.37 × 18 =
15. 15.21 × 24 =
16. 16.16 × 18 =
17. 17.46 × 16 =
18. 18.17 × 12 =
19. 19.16 × 12 =
20. 20.31 × 12 =
21. 21.45 × 15 =
22. 22.34 × 14 =
23. 23.19 × 18 =
24. 24.13 × 18 =
25. 25.49 × 14 =
26. 26.32 × 12 =
27. 27.40 × 15 =
28. 28.43 × 14 =
29. 29.37 × 12 =
30. 30.18 × 18 =
31. 31.45 × 18 =
32. 32.11 × 12 =
33. 33.21 × 18 =
34. 34.44 × 12 =
35. 35.38 × 12 =
36. 36.43 × 12 =
37. 37.26 × 24 =
38. 38.31 × 14 =
39. 39.44 × 15 =
40. 40.38 × 18 =

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