Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 544 · 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. 2.254 × 9 =
3. 3.2 × 9 =
4. 4.46 × 99 =
5. 5.104 × 9 =
6. 6.2169 × 99 =
7. 7.332 × 999 =
8. 8.4 × 9 =
9. 9.587 × 999 =
10. 10.6 × 9 =
11. 11.19 × 99 =
12. 12.5 × 9 =
13. 13.2901 × 99 =
14. 14.4 × 9 =
15. 15.2 × 9 =
16. 16.35 × 99 =
17. 17.573 × 99 =
18. 18.42 × 999 =
19. 19.19 × 99 =
20. 20.11517 × 999 =
21. 21.15333 × 999 =
22. 22.324 × 99 =
23. 23.3 × 9 =
24. 24.16 × 99 =
25. 25.495 × 999 =
26. 26.46 × 9 =
27. 27.92 × 99 =
28. 28.13 × 99 =
29. 29.488 × 999 =
30. 30.97 × 999 =
31. 31.13 × 99 =
32. 32.29 × 99 =
33. 33.7 × 9 =
34. 34.4627 × 999 =
35. 35.4804 × 999 =
36. 36.95 × 99 =
37. 37.54 × 99 =
38. 38.9 × 99 =
39. 39.343 × 99 =
40. 40.45 × 99 =

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