Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 581 · 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. 1.95 × 9 =
2. 2.153 × 999 =
3. 3.14937 × 999 =
4. 4.32 × 99 =
5. 5.616 × 999 =
6. 6.777 × 999 =
7. 7.9869 × 999 =
8. 8.23479 × 999 =
9. 9.4 × 9 =
10. 10.28 × 99 =
11. 11.6 × 9 =
12. 12.22275 × 999 =
13. 13.5 × 9 =
14. 14.67 × 99 =
15. 15.16 × 99 =
16. 16.55 × 99 =
17. 17.2 × 99 =
18. 18.11 × 99 =
19. 19.3 × 9 =
20. 20.9 × 99 =
21. 21.95 × 99 =
22. 22.2 × 9 =
23. 23.2 × 9 =
24. 24.28 × 99 =
25. 25.3 × 9 =
26. 26.65 × 99 =
27. 27.372 × 999 =
28. 28.2335 × 99 =
29. 29.648 × 999 =
30. 30.23 × 99 =
31. 31.8 × 9 =
32. 32.61 × 99 =
33. 33.20725 × 999 =
34. 34.2855 × 99 =
35. 35.11 × 99 =
36. 36.2795 × 99 =
37. 37.37 × 99 =
38. 38.231 × 9 =
39. 39.28 × 99 =
40. 40.29 × 99 =

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