Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 832 · 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. 1.471 × 999 =
2. 2.74 × 99 =
3. 3.2033 × 99 =
4. 4.5 × 9 =
5. 5.1366 × 99 =
6. 6.9 × 99 =
7. 7.8 × 9 =
8. 8.657 × 999 =
9. 9.19 × 99 =
10. 10.1479 × 99 =
11. 11.739 × 999 =
12. 12.617 × 999 =
13. 13.519 × 999 =
14. 14.8 × 9 =
15. 15.89 × 99 =
16. 16.34 × 999 =
17. 17.2182 × 99 =
18. 18.311 × 999 =
19. 19.11 × 9 =
20. 20.34 × 99 =
21. 21.79 × 99 =
22. 22.114 × 999 =
23. 23.96 × 999 =
24. 24.46 × 9 =
25. 25.23 × 99 =
26. 26.203 × 999 =
27. 27.454 × 999 =
28. 28.88 × 99 =
29. 29.1926 × 999 =
30. 30.1072 × 99 =
31. 31.743 × 999 =
32. 32.3 × 99 =
33. 33.1378 × 99 =
34. 34.34 × 99 =
35. 35.7 × 9 =
36. 36.8 × 9 =
37. 37.79 × 99 =
38. 38.77 × 99 =
39. 39.2 × 9 =
40. 40.196 × 9 =

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