Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 700 · 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 × 999 =
2. 2.738 × 999 =
3. 3.98 × 9 =
4. 4.603 × 999 =
5. 5.21 × 99 =
6. 6.13 × 99 =
7. 7.674 × 999 =
8. 8.41 × 99 =
9. 9.5 × 9 =
10. 10.65 × 99 =
11. 11.5 × 9 =
12. 12.28 × 99 =
13. 13.19 × 99 =
14. 14.1309 × 99 =
15. 15.2 × 9 =
16. 16.6 × 9 =
17. 17.7 × 9 =
18. 18.5 × 9 =
19. 19.5 × 99 =
20. 20.6 × 9 =
21. 21.2 × 9 =
22. 22.804 × 999 =
23. 23.46 × 999 =
24. 24.85 × 99 =
25. 25.43 × 99 =
26. 26.734 × 999 =
27. 27.261 × 9 =
28. 28.9 × 99 =
29. 29.22372 × 999 =
30. 30.24 × 99 =
31. 31.76 × 99 =
32. 32.19546 × 999 =
33. 33.1765 × 99 =
34. 34.1321 × 99 =
35. 35.4 × 9 =
36. 36.992 × 999 =
37. 37.96 × 99 =
38. 38.32 × 9 =
39. 39.624 × 999 =
40. 40.1392 × 99 =

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