Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 872 · 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. 1.316 × 999 =
2. 2.9 × 99 =
3. 3.29 × 99 =
4. 4.685 × 999 =
5. 5.84 × 9 =
6. 6.774 × 999 =
7. 7.869 × 999 =
8. 8.11 × 99 =
9. 9.248 × 999 =
10. 10.2 × 9 =
11. 11.64 × 9 =
12. 12.66 × 99 =
13. 13.1554 × 99 =
14. 14.6 × 99 =
15. 15.519 × 999 =
16. 16.161 × 9 =
17. 17.153 × 9 =
18. 18.161 × 999 =
19. 19.538 × 99 =
20. 20.28 × 9 =
21. 21.121 × 999 =
22. 22.7 × 99 =
23. 23.2421 × 99 =
24. 24.1405 × 99 =
25. 25.238 × 9 =
26. 26.8 × 9 =
27. 27.413 × 999 =
28. 28.253 × 9 =
29. 29.19421 × 999 =
30. 30.67 × 9 =
31. 31.3 × 9 =
32. 32.736 × 999 =
33. 33.187 × 999 =
34. 34.61 × 99 =
35. 35.227 × 9 =
36. 36.92 × 9 =
37. 37.5 × 9 =
38. 38.2 × 9 =
39. 39.2 × 9 =
40. 40.63 × 9 =

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