Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 470 · 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. 1.88 × 92 =
2. 2.110 × 105 =
3. 3.107 × 86 =
4. 4.1018 × 988 =
5. 5.103 × 96 =
6. 6.113 × 103 =
7. 7.90 × 98 =
8. 8.95 × 98 =
9. 9.106 × 97 =
10. 10.114 × 103 =
11. 11.115 × 104 =
12. 12.11 × 13 =
13. 13.99 × 89 =
14. 14.14 × 7 =
15. 15.990 × 992 =
16. 16.9 × 6 =
17. 17.972 × 983 =
18. 18.113 × 107 =
19. 19.998 × 960 =
20. 20.971 × 992 =
21. 21.88 × 94 =
22. 22.1011 × 1032 =
23. 23.106 × 96 =
24. 24.86 × 94 =
25. 25.96 × 87 =
26. 26.103 × 88 =
27. 27.97 × 97 =
28. 28.1021 × 1025 =
29. 29.1032 × 1040 =
30. 30.6 × 6 =
31. 31.91 × 88 =
32. 32.103 × 85 =
33. 33.11 × 9 =
34. 34.103 × 101 =
35. 35.90 × 97 =
36. 36.9 × 7 =
37. 37.1040 × 1039 =
38. 38.96 × 94 =
39. 39.972 × 963 =
40. 40.9 × 6 =

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