Multiply by 12, 16, 18 and 24 Worksheet

Maths tricks trick 19: Factor chains for multiplying · Set 592 · 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. 1.20 × 16 =
2. 2.36 × 16 =
3. 3.21 × 24 =
4. 4.14 × 18 =
5. 5.33 × 12 =
6. 6.12 × 16 =
7. 7.35 × 14 =
8. 8.48 × 14 =
9. 9.29 × 24 =
10. 10.14 × 12 =
11. 11.42 × 18 =
12. 12.39 × 18 =
13. 13.48 × 15 =
14. 14.31 × 16 =
15. 15.16 × 14 =
16. 16.41 × 18 =
17. 17.20 × 15 =
18. 18.19 × 24 =
19. 19.45 × 16 =
20. 20.42 × 15 =
21. 21.13 × 24 =
22. 22.36 × 18 =
23. 23.30 × 15 =
24. 24.43 × 12 =
25. 25.15 × 15 =
26. 26.20 × 12 =
27. 27.39 × 16 =
28. 28.43 × 16 =
29. 29.39 × 15 =
30. 30.33 × 18 =
31. 31.17 × 18 =
32. 32.12 × 12 =
33. 33.48 × 12 =
34. 34.40 × 15 =
35. 35.21 × 14 =
36. 36.40 × 16 =
37. 37.48 × 24 =
38. 38.46 × 16 =
39. 39.11 × 24 =
40. 40.36 × 14 =

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