Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 433 · 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. 1.9641 × 999 =
2. 2.2839 × 99 =
3. 3.7 × 9 =
4. 4.98 × 99 =
5. 5.12791 × 999 =
6. 6.1129 × 99 =
7. 7.26 × 99 =
8. 8.324 × 99 =
9. 9.481 × 999 =
10. 10.84 × 99 =
11. 11.1648 × 99 =
12. 12.347 × 999 =
13. 13.948 × 999 =
14. 14.401 × 999 =
15. 15.955 × 999 =
16. 16.65 × 99 =
17. 17.66 × 9 =
18. 18.6 × 9 =
19. 19.24 × 99 =
20. 20.6 × 9 =
21. 21.1401 × 99 =
22. 22.454 × 999 =
23. 23.5 × 9 =
24. 24.893 × 999 =
25. 25.1664 × 99 =
26. 26.2 × 9 =
27. 27.5 × 9 =
28. 28.3 × 9 =
29. 29.771 × 999 =
30. 30.2165 × 99 =
31. 31.26 × 9 =
32. 32.822 × 99 =
33. 33.19 × 99 =
34. 34.28434 × 999 =
35. 35.5 × 9 =
36. 36.27117 × 999 =
37. 37.4 × 9 =
38. 38.55 × 99 =
39. 39.68 × 99 =
40. 40.2838 × 99 =

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