Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 86 · 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. 1.2 × 9 =
2. 2.351 × 999 =
3. 3.278 × 99 =
4. 4.5 × 99 =
5. 5.181 × 999 =
6. 6.8 × 9 =
7. 7.684 × 999 =
8. 8.6601 × 999 =
9. 9.27 × 99 =
10. 10.68 × 99 =
11. 11.4 × 9 =
12. 12.774 × 99 =
13. 13.495 × 999 =
14. 14.212 × 9 =
15. 15.305 × 999 =
16. 16.23 × 99 =
17. 17.9 × 99 =
18. 18.8 × 9 =
19. 19.59 × 99 =
20. 20.8213 × 999 =
21. 21.374 × 99 =
22. 22.7 × 9 =
23. 23.8 × 9 =
24. 24.612 × 999 =
25. 25.5 × 9 =
26. 26.2007 × 99 =
27. 27.3 × 9 =
28. 28.5 × 9 =
29. 29.468 × 99 =
30. 30.112 × 9 =
31. 31.52 × 99 =
32. 32.12 × 99 =
33. 33.4 × 9 =
34. 34.268 × 9 =
35. 35.4 × 999 =
36. 36.891 × 99 =
37. 37.65 × 99 =
38. 38.39 × 9 =
39. 39.76 × 99 =
40. 40.6 × 9 =

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