Multiply by 12, 16, 18 and 24 Worksheet

Maths tricks trick 19: Factor chains for multiplying · Set 166 · 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. 1.19 × 14 =
2. 2.47 × 15 =
3. 3.36 × 14 =
4. 4.14 × 24 =
5. 5.30 × 18 =
6. 6.39 × 14 =
7. 7.31 × 12 =
8. 8.20 × 12 =
9. 9.34 × 16 =
10. 10.12 × 15 =
11. 11.33 × 12 =
12. 12.22 × 15 =
13. 13.13 × 16 =
14. 14.40 × 24 =
15. 15.47 × 16 =
16. 16.21 × 16 =
17. 17.28 × 12 =
18. 18.33 × 16 =
19. 19.18 × 24 =
20. 20.33 × 18 =
21. 21.30 × 14 =
22. 22.44 × 14 =
23. 23.40 × 14 =
24. 24.45 × 24 =
25. 25.45 × 12 =
26. 26.35 × 18 =
27. 27.41 × 15 =
28. 28.42 × 24 =
29. 29.37 × 15 =
30. 30.29 × 14 =
31. 31.32 × 16 =
32. 32.37 × 24 =
33. 33.36 × 15 =
34. 34.35 × 24 =
35. 35.17 × 24 =
36. 36.39 × 18 =
37. 37.13 × 18 =
38. 38.35 × 16 =
39. 39.46 × 24 =
40. 40.37 × 18 =

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