Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 552 · 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. 1.45 × 9 =
2. 2.86 × 99 =
3. 3.369 × 999 =
4. 4.92 × 999 =
5. 5.685 × 999 =
6. 6.77 × 99 =
7. 7.93 × 99 =
8. 8.249 × 9 =
9. 9.574 × 999 =
10. 10.56 × 99 =
11. 11.468 × 999 =
12. 12.185 × 9 =
13. 13.6679 × 999 =
14. 14.151 × 999 =
15. 15.8 × 9 =
16. 16.8 × 9 =
17. 17.102 × 9 =
18. 18.34 × 99 =
19. 19.2468 × 99 =
20. 20.5 × 9 =
21. 21.193 × 999 =
22. 22.14 × 99 =
23. 23.21 × 99 =
24. 24.69 × 99 =
25. 25.63 × 99 =
26. 26.95 × 99 =
27. 27.38 × 99 =
28. 28.232 × 9 =
29. 29.151 × 9 =
30. 30.147 × 9 =
31. 31.27 × 99 =
32. 32.18 × 99 =
33. 33.41 × 99 =
34. 34.219 × 9 =
35. 35.2 × 99 =
36. 36.7 × 9 =
37. 37.3 × 9 =
38. 38.98 × 9 =
39. 39.995 × 999 =
40. 40.21469 × 999 =

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