Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 556 · 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. 2.939 × 99 =
3. 3.521 × 999 =
4. 4.855 × 99 =
5. 5.51 × 99 =
6. 6.953 × 99 =
7. 7.4 × 9 =
8. 8.777 × 999 =
9. 9.4 × 9 =
10. 10.2639 × 99 =
11. 11.546 × 999 =
12. 12.38 × 99 =
13. 13.91 × 9 =
14. 14.15166 × 999 =
15. 15.3 × 9 =
16. 16.14 × 99 =
17. 17.5 × 9 =
18. 18.14 × 99 =
19. 19.112 × 999 =
20. 20.517 × 999 =
21. 21.581 × 999 =
22. 22.23868 × 999 =
23. 23.7 × 99 =
24. 24.76 × 99 =
25. 25.7 × 9 =
26. 26.2 × 9 =
27. 27.5 × 9 =
28. 28.591 × 999 =
29. 29.2 × 9 =
30. 30.21 × 99 =
31. 31.98 × 99 =
32. 32.14515 × 999 =
33. 33.9 × 99 =
34. 34.94 × 99 =
35. 35.4 × 9 =
36. 36.75 × 99 =
37. 37.182 × 9 =
38. 38.39 × 99 =
39. 39.193 × 999 =
40. 40.394 × 999 =

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