Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 379 · 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. 1.252 × 9 =
2. 2.81 × 9 =
3. 3.223 × 9 =
4. 4.93 × 99 =
5. 5.659 × 999 =
6. 6.34 × 99 =
7. 7.7 × 9 =
8. 8.763 × 999 =
9. 9.69 × 99 =
10. 10.241 × 99 =
11. 11.1335 × 99 =
12. 12.17118 × 999 =
13. 13.265 × 999 =
14. 14.2828 × 99 =
15. 15.825 × 99 =
16. 16.583 × 999 =
17. 17.23314 × 999 =
18. 18.2 × 9 =
19. 19.138 × 999 =
20. 20.91 × 99 =
21. 21.71 × 99 =
22. 22.18 × 99 =
23. 23.3 × 9 =
24. 24.5 × 9 =
25. 25.659 × 99 =
26. 26.98 × 99 =
27. 27.63 × 99 =
28. 28.7 × 9 =
29. 29.43 × 999 =
30. 30.821 × 999 =
31. 31.3 × 9 =
32. 32.36 × 99 =
33. 33.34 × 99 =
34. 34.52 × 99 =
35. 35.561 × 999 =
36. 36.12063 × 999 =
37. 37.503 × 999 =
38. 38.6 × 9 =
39. 39.3 × 9 =
40. 40.81 × 99 =

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