Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 439 · 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. 1.61 × 999 =
2. 2.2567 × 999 =
3. 3.647 × 999 =
4. 4.8 × 9 =
5. 5.4 × 9 =
6. 6.219 × 9 =
7. 7.77 × 99 =
8. 8.182 × 999 =
9. 9.7622 × 999 =
10. 10.21 × 99 =
11. 11.18 × 99 =
12. 12.4 × 9 =
13. 13.253 × 9 =
14. 14.51 × 99 =
15. 15.8 × 9 =
16. 16.8 × 9 =
17. 17.8 × 9 =
18. 18.5 × 9 =
19. 19.3 × 9 =
20. 20.659 × 99 =
21. 21.77 × 99 =
22. 22.143 × 9 =
23. 23.51 × 99 =
24. 24.1121 × 99 =
25. 25.16448 × 999 =
26. 26.31 × 999 =
27. 27.6 × 99 =
28. 28.85 × 99 =
29. 29.231 × 9 =
30. 30.8 × 9 =
31. 31.53 × 99 =
32. 32.17 × 9 =
33. 33.23 × 99 =
34. 34.64 × 9 =
35. 35.26491 × 999 =
36. 36.348 × 999 =
37. 37.229 × 9 =
38. 38.4 × 9 =
39. 39.2287 × 99 =
40. 40.357 × 999 =

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