Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 89 · 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. 1.5 × 9 =
2. 2.8 × 99 =
3. 3.35 × 99 =
4. 4.747 × 999 =
5. 5.28957 × 999 =
6. 6.26 × 99 =
7. 7.79 × 999 =
8. 8.311 × 999 =
9. 9.4 × 9 =
10. 10.21 × 99 =
11. 11.963 × 999 =
12. 12.8 × 9 =
13. 13.12 × 99 =
14. 14.1743 × 99 =
15. 15.4 × 9 =
16. 16.5 × 9 =
17. 17.1152 × 99 =
18. 18.758 × 99 =
19. 19.917 × 999 =
20. 20.5 × 9 =
21. 21.7 × 99 =
22. 22.12 × 99 =
23. 23.74 × 99 =
24. 24.5 × 9 =
25. 25.2822 × 99 =
26. 26.61 × 99 =
27. 27.72 × 99 =
28. 28.64 × 99 =
29. 29.4 × 9 =
30. 30.49 × 99 =
31. 31.6 × 9 =
32. 32.61 × 999 =
33. 33.719 × 999 =
34. 34.12364 × 999 =
35. 35.3 × 9 =
36. 36.461 × 999 =
37. 37.21 × 999 =
38. 38.4 × 9 =
39. 39.4 × 9 =
40. 40.25858 × 999 =

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