Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 249 · 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. 1.3 × 9 =
2. 2.1823 × 99 =
3. 3.3841 × 999 =
4. 4.34 × 99 =
5. 5.229 × 9 =
6. 6.91 × 99 =
7. 7.769 × 999 =
8. 8.13 × 99 =
9. 9.3 × 9 =
10. 10.2 × 99 =
11. 11.151 × 999 =
12. 12.95 × 99 =
13. 13.166 × 999 =
14. 14.4 × 9 =
15. 15.71 × 99 =
16. 16.346 × 999 =
17. 17.578 × 999 =
18. 18.25774 × 999 =
19. 19.167 × 9 =
20. 20.17199 × 999 =
21. 21.4 × 9 =
22. 22.7 × 99 =
23. 23.518 × 999 =
24. 24.12352 × 999 =
25. 25.71 × 999 =
26. 26.972 × 999 =
27. 27.6 × 9 =
28. 28.4 × 9 =
29. 29.6 × 9 =
30. 30.112 × 9 =
31. 31.994 × 999 =
32. 32.351 × 999 =
33. 33.7 × 9 =
34. 34.56 × 99 =
35. 35.426 × 999 =
36. 36.1668 × 99 =
37. 37.88 × 99 =
38. 38.83 × 99 =
39. 39.92 × 99 =
40. 40.115 × 999 =

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