Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 718 · 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. 1.6 × 9 =
2. 2.35 × 9 =
3. 3.202 × 999 =
4. 4.5 × 9 =
5. 5.281 × 999 =
6. 6.701 × 999 =
7. 7.168 × 9 =
8. 8.803 × 999 =
9. 9.21 × 99 =
10. 10.276 × 999 =
11. 11.7 × 9 =
12. 12.18 × 99 =
13. 13.54 × 99 =
14. 14.9 × 99 =
15. 15.75 × 99 =
16. 16.56 × 99 =
17. 17.92 × 99 =
18. 18.57 × 99 =
19. 19.11775 × 999 =
20. 20.225 × 9 =
21. 21.44 × 99 =
22. 22.19 × 99 =
23. 23.2371 × 99 =
24. 24.201 × 9 =
25. 25.7 × 9 =
26. 26.98 × 99 =
27. 27.67 × 99 =
28. 28.164 × 999 =
29. 29.2784 × 99 =
30. 30.78 × 99 =
31. 31.5 × 9 =
32. 32.176 × 9 =
33. 33.323 × 99 =
34. 34.2156 × 99 =
35. 35.3 × 99 =
36. 36.1541 × 99 =
37. 37.135 × 9 =
38. 38.309 × 999 =
39. 39.862 × 999 =
40. 40.2 × 9 =

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