Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 59 · 40 sums

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

1. 1.365 × 999 =
2. 2.182 × 9 =
3. 3.2071 × 99 =
4. 4.64 × 99 =
5. 5.8068 × 999 =
6. 6.24354 × 999 =
7. 7.1991 × 99 =
8. 8.4 × 9 =
9. 9.28 × 99 =
10. 10.37 × 99 =
11. 11.2 × 9 =
12. 12.119 × 999 =
13. 13.486 × 999 =
14. 14.2 × 9 =
15. 15.1503 × 99 =
16. 16.591 × 999 =
17. 17.37 × 99 =
18. 18.4 × 9 =
19. 19.55 × 99 =
20. 20.101 × 9 =
21. 21.9247 × 999 =
22. 22.91 × 99 =
23. 23.6 × 9 =
24. 24.6 × 9 =
25. 25.54 × 999 =
26. 26.8 × 9 =
27. 27.88 × 99 =
28. 28.11998 × 999 =
29. 29.137 × 9 =
30. 30.114 × 99 =
31. 31.6 × 9 =
32. 32.2056 × 99 =
33. 33.8 × 9 =
34. 34.16 × 9 =
35. 35.107 × 999 =
36. 36.3 × 9 =
37. 37.19 × 99 =
38. 38.5 × 9 =
39. 39.49 × 99 =
40. 40.316 × 999 =

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