Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 734 · 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. 1.606 × 999 =
2. 2.2 × 9 =
3. 3.35 × 99 =
4. 4.91 × 9 =
5. 5.151 × 9 =
6. 6.331 × 99 =
7. 7.2 × 9 =
8. 8.61 × 99 =
9. 9.246 × 9 =
10. 10.148 × 999 =
11. 11.14 × 99 =
12. 12.5 × 9 =
13. 13.8 × 9 =
14. 14.112 × 999 =
15. 15.686 × 999 =
16. 16.671 × 999 =
17. 17.747 × 999 =
18. 18.247 × 999 =
19. 19.171 × 999 =
20. 20.11553 × 999 =
21. 21.31 × 99 =
22. 22.5 × 9 =
23. 23.7 × 9 =
24. 24.8 × 9 =
25. 25.6 × 9 =
26. 26.36 × 99 =
27. 27.68 × 99 =
28. 28.776 × 999 =
29. 29.144 × 999 =
30. 30.931 × 999 =
31. 31.921 × 999 =
32. 32.5 × 9 =
33. 33.1841 × 99 =
34. 34.324 × 99 =
35. 35.83 × 99 =
36. 36.242 × 9 =
37. 37.2 × 9 =
38. 38.2 × 9 =
39. 39.243 × 9 =
40. 40.93 × 99 =

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