Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 614 · 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. 1.198 × 9 =
2. 2.4 × 9 =
3. 3.4 × 9 =
4. 4.5 × 9 =
5. 5.2501 × 99 =
6. 6.504 × 999 =
7. 7.485 × 999 =
8. 8.62 × 99 =
9. 9.6 × 99 =
10. 10.67 × 99 =
11. 11.472 × 999 =
12. 12.113 × 9 =
13. 13.295 × 999 =
14. 14.1367 × 99 =
15. 15.5 × 9 =
16. 16.7 × 9 =
17. 17.3 × 99 =
18. 18.17712 × 999 =
19. 19.2456 × 99 =
20. 20.106 × 999 =
21. 21.411 × 999 =
22. 22.501 × 999 =
23. 23.242 × 999 =
24. 24.12 × 9 =
25. 25.14581 × 999 =
26. 26.23 × 99 =
27. 27.2 × 9 =
28. 28.8 × 9 =
29. 29.67 × 999 =
30. 30.996 × 999 =
31. 31.6 × 9 =
32. 32.884 × 999 =
33. 33.8 × 9 =
34. 34.362 × 999 =
35. 35.42 × 99 =
36. 36.68 × 99 =
37. 37.183 × 999 =
38. 38.88 × 99 =
39. 39.337 × 999 =
40. 40.62 × 99 =

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