Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 258 · 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. 1.7 × 9 =
2. 2.2219 × 99 =
3. 3.25221 × 999 =
4. 4.59 × 99 =
5. 5.54 × 99 =
6. 6.8 × 9 =
7. 7.5 × 9 =
8. 8.228 × 999 =
9. 9.14 × 99 =
10. 10.3 × 9 =
11. 11.94 × 99 =
12. 12.44 × 99 =
13. 13.2366 × 99 =
14. 14.7 × 9 =
15. 15.192 × 999 =
16. 16.89 × 9 =
17. 17.4912 × 999 =
18. 18.12 × 999 =
19. 19.246 × 9 =
20. 20.13536 × 999 =
21. 21.43 × 99 =
22. 22.693 × 999 =
23. 23.644 × 999 =
24. 24.1552 × 99 =
25. 25.948 × 99 =
26. 26.2634 × 99 =
27. 27.128 × 9 =
28. 28.1057 × 99 =
29. 29.7 × 9 =
30. 30.61 × 99 =
31. 31.354 × 999 =
32. 32.5 × 9 =
33. 33.147 × 999 =
34. 34.2 × 9 =
35. 35.411 × 999 =
36. 36.3 × 9 =
37. 37.88 × 99 =
38. 38.76 × 99 =
39. 39.10031 × 999 =
40. 40.2 × 9 =

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