Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 945 · 40 sums

The trick (Nikhilam Navatashcaramam Dashatah): Write how far each number is from the base (− if below, + if above). Left part: cross-add — one number plus the other’s difference. Right part: multiply the two differences; it must have as many digits as the base has zeros (carry the extra). One above and one below? The right part is negative: take 1 from the left part and write base − that amount.

1. 1.92 × 99 =
2. 2.11 × 14 =
3. 3.86 × 93 =
4. 4.14 × 12 =
5. 5.87 × 90 =
6. 6.1009 × 1023 =
7. 7.111 × 88 =
8. 8.103 × 90 =
9. 9.12 × 12 =
10. 10.109 × 101 =
11. 11.991 × 967 =
12. 12.101 × 97 =
13. 13.971 × 994 =
14. 14.11 × 7 =
15. 15.7 × 6 =
16. 16.105 × 94 =
17. 17.110 × 102 =
18. 18.86 × 90 =
19. 19.8 × 9 =
20. 20.109 × 105 =
21. 21.8 × 8 =
22. 22.9 × 9 =
23. 23.12 × 11 =
24. 24.13 × 11 =
25. 25.104 × 115 =
26. 26.1016 × 1021 =
27. 27.107 × 94 =
28. 28.8 × 8 =
29. 29.104 × 102 =
30. 30.95 × 98 =
31. 31.111 × 113 =
32. 32.14 × 14 =
33. 33.7 × 7 =
34. 34.112 × 99 =
35. 35.96 × 99 =
36. 36.102 × 88 =
37. 37.96 × 85 =
38. 38.1028 × 1023 =
39. 39.962 × 972 =
40. 40.106 × 99 =

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