Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 333 · 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. 1.2776 × 99 =
2. 2.642 × 999 =
3. 3.67 × 9 =
4. 4.7 × 9 =
5. 5.296 × 999 =
6. 6.981 × 999 =
7. 7.7 × 9 =
8. 8.1978 × 99 =
9. 9.71 × 999 =
10. 10.111 × 9 =
11. 11.6 × 9 =
12. 12.964 × 999 =
13. 13.92 × 99 =
14. 14.7 × 9 =
15. 15.96 × 99 =
16. 16.61 × 999 =
17. 17.25 × 9 =
18. 18.426 × 999 =
19. 19.3 × 9 =
20. 20.15 × 99 =
21. 21.2 × 9 =
22. 22.1651 × 99 =
23. 23.61 × 99 =
24. 24.5 × 9 =
25. 25.55 × 99 =
26. 26.566 × 999 =
27. 27.7 × 9 =
28. 28.618 × 999 =
29. 29.8 × 99 =
30. 30.2 × 9 =
31. 31.34 × 9 =
32. 32.912 × 999 =
33. 33.6 × 9 =
34. 34.6 × 9 =
35. 35.65 × 99 =
36. 36.41 × 99 =
37. 37.1102 × 99 =
38. 38.353 × 999 =
39. 39.795 × 99 =
40. 40.1627 × 99 =

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