Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 486 · 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. 1.95 × 85 =
2. 2.1033 × 1038 =
3. 3.94 × 86 =
4. 4.108 × 115 =
5. 5.112 × 104 =
6. 6.97 × 98 =
7. 7.979 × 972 =
8. 8.6 × 9 =
9. 9.987 × 996 =
10. 10.12 × 6 =
11. 11.89 × 94 =
12. 12.102 × 88 =
13. 13.974 × 989 =
14. 14.8 × 6 =
15. 15.101 × 96 =
16. 16.105 × 88 =
17. 17.97 × 99 =
18. 18.991 × 975 =
19. 19.8 × 9 =
20. 20.105 × 106 =
21. 21.1038 × 1035 =
22. 22.91 × 91 =
23. 23.14 × 12 =
24. 24.113 × 105 =
25. 25.113 × 102 =
26. 26.981 × 993 =
27. 27.96 × 92 =
28. 28.12 × 13 =
29. 29.112 × 104 =
30. 30.14 × 8 =
31. 31.113 × 98 =
32. 32.1014 × 1006 =
33. 33.12 × 11 =
34. 34.115 × 91 =
35. 35.13 × 12 =
36. 36.97 × 91 =
37. 37.103 × 109 =
38. 38.102 × 87 =
39. 39.94 × 86 =
40. 40.109 × 110 =

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