Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 208 · 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. 1.18 × 99 =
2. 2.44 × 99 =
3. 3.4 × 9 =
4. 4.96 × 99 =
5. 5.78 × 999 =
6. 6.17 × 99 =
7. 7.6 × 99 =
8. 8.841 × 99 =
9. 9.7 × 9 =
10. 10.426 × 999 =
11. 11.1819 × 99 =
12. 12.7 × 9 =
13. 13.6 × 9 =
14. 14.152 × 9 =
15. 15.7 × 9 =
16. 16.219 × 999 =
17. 17.55 × 99 =
18. 18.803 × 999 =
19. 19.833 × 999 =
20. 20.8 × 99 =
21. 21.29715 × 999 =
22. 22.896 × 999 =
23. 23.278 × 999 =
24. 24.3 × 9 =
25. 25.8 × 9 =
26. 26.86 × 99 =
27. 27.741 × 999 =
28. 28.78 × 99 =
29. 29.75 × 99 =
30. 30.931 × 999 =
31. 31.1598 × 99 =
32. 32.43 × 99 =
33. 33.29507 × 999 =
34. 34.43 × 99 =
35. 35.413 × 999 =
36. 36.6 × 9 =
37. 37.633 × 999 =
38. 38.4 × 9 =
39. 39.19 × 99 =
40. 40.8 × 999 =

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