Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 297 · 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. 1.255 × 999 =
2. 2.95 × 99 =
3. 3.49 × 99 =
4. 4.59 × 999 =
5. 5.65 × 99 =
6. 6.45 × 99 =
7. 7.7 × 9 =
8. 8.4 × 9 =
9. 9.45 × 99 =
10. 10.692 × 999 =
11. 11.319 × 999 =
12. 12.19 × 99 =
13. 13.4 × 9 =
14. 14.2 × 9 =
15. 15.3 × 9 =
16. 16.192 × 9 =
17. 17.2663 × 99 =
18. 18.2432 × 99 =
19. 19.265 × 9 =
20. 20.71 × 99 =
21. 21.54 × 99 =
22. 22.124 × 999 =
23. 23.19 × 99 =
24. 24.5 × 9 =
25. 25.22744 × 999 =
26. 26.54 × 99 =
27. 27.8 × 9 =
28. 28.8 × 9 =
29. 29.71 × 99 =
30. 30.86 × 99 =
31. 31.275 × 999 =
32. 32.21241 × 999 =
33. 33.13463 × 999 =
34. 34.77 × 99 =
35. 35.219 × 999 =
36. 36.1335 × 99 =
37. 37.47 × 99 =
38. 38.98 × 99 =
39. 39.82 × 99 =
40. 40.471 × 999 =

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