Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 341 · 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. 1.6 × 99 =
2. 2.962 × 999 =
3. 3.3 × 9 =
4. 4.58 × 9 =
5. 5.5639 × 999 =
6. 6.19 × 99 =
7. 7.5 × 9 =
8. 8.4623 × 999 =
9. 9.212 × 999 =
10. 10.11644 × 999 =
11. 11.2 × 9 =
12. 12.75 × 99 =
13. 13.248 × 999 =
14. 14.25 × 99 =
15. 15.2302 × 99 =
16. 16.736 × 999 =
17. 17.17612 × 999 =
18. 18.217 × 9 =
19. 19.79 × 99 =
20. 20.275 × 999 =
21. 21.57 × 99 =
22. 22.842 × 999 =
23. 23.5 × 9 =
24. 24.2 × 9 =
25. 25.25185 × 999 =
26. 26.157 × 9 =
27. 27.1712 × 99 =
28. 28.42 × 99 =
29. 29.581 × 999 =
30. 30.66 × 99 =
31. 31.21 × 99 =
32. 32.41 × 999 =
33. 33.9 × 99 =
34. 34.27 × 99 =
35. 35.3 × 9 =
36. 36.173 × 9 =
37. 37.243 × 9 =
38. 38.6 × 9 =
39. 39.564 × 999 =
40. 40.23995 × 999 =

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