Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 238 · 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. 1.105 × 92 =
2. 2.1031 × 971 =
3. 3.114 × 89 =
4. 4.12 × 6 =
5. 5.106 × 102 =
6. 6.88 × 99 =
7. 7.11 × 9 =
8. 8.13 × 7 =
9. 9.13 × 13 =
10. 10.85 × 96 =
11. 11.94 × 94 =
12. 12.13 × 11 =
13. 13.6 × 9 =
14. 14.112 × 99 =
15. 15.86 × 99 =
16. 16.97 × 93 =
17. 17.7 × 9 =
18. 18.6 × 7 =
19. 19.104 × 109 =
20. 20.982 × 996 =
21. 21.1036 × 974 =
22. 22.87 × 98 =
23. 23.9 × 6 =
24. 24.1033 × 1040 =
25. 25.7 × 6 =
26. 26.93 × 92 =
27. 27.86 × 91 =
28. 28.102 × 103 =
29. 29.11 × 13 =
30. 30.9 × 9 =
31. 31.85 × 95 =
32. 32.1040 × 1011 =
33. 33.113 × 92 =
34. 34.1021 × 1012 =
35. 35.92 × 95 =
36. 36.101 × 104 =
37. 37.13 × 13 =
38. 38.978 × 967 =
39. 39.11 × 9 =
40. 40.95 × 94 =

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