Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 79 · 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. 1.2 × 9 =
2. 2.4 × 9 =
3. 3.28673 × 999 =
4. 4.20303 × 999 =
5. 5.26 × 99 =
6. 6.95 × 9 =
7. 7.77 × 99 =
8. 8.3 × 9 =
9. 9.11 × 99 =
10. 10.2 × 9 =
11. 11.6 × 9 =
12. 12.7 × 9 =
13. 13.15 × 99 =
14. 14.81 × 99 =
15. 15.209 × 999 =
16. 16.5 × 9 =
17. 17.26 × 99 =
18. 18.5 × 9 =
19. 19.264 × 9 =
20. 20.27 × 9 =
21. 21.2481 × 99 =
22. 22.1329 × 99 =
23. 23.963 × 999 =
24. 24.7 × 9 =
25. 25.75 × 99 =
26. 26.74 × 99 =
27. 27.21031 × 999 =
28. 28.901 × 999 =
29. 29.28769 × 999 =
30. 30.202 × 99 =
31. 31.2 × 9 =
32. 32.2636 × 999 =
33. 33.299 × 99 =
34. 34.4 × 9 =
35. 35.971 × 999 =
36. 36.51 × 99 =
37. 37.2 × 9 =
38. 38.686 × 99 =
39. 39.192 × 999 =
40. 40.7 × 9 =

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