Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 617 · 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 × 97 =
2. 2.107 × 103 =
3. 3.14 × 7 =
4. 4.108 × 102 =
5. 5.112 × 86 =
6. 6.981 × 960 =
7. 7.109 × 98 =
8. 8.111 × 115 =
9. 9.93 × 87 =
10. 10.995 × 972 =
11. 11.103 × 105 =
12. 12.8 × 6 =
13. 13.114 × 94 =
14. 14.974 × 995 =
15. 15.14 × 6 =
16. 16.113 × 88 =
17. 17.95 × 90 =
18. 18.89 × 90 =
19. 19.112 × 113 =
20. 20.88 × 93 =
21. 21.115 × 86 =
22. 22.11 × 9 =
23. 23.970 × 969 =
24. 24.93 × 89 =
25. 25.12 × 13 =
26. 26.972 × 999 =
27. 27.11 × 14 =
28. 28.115 × 108 =
29. 29.96 × 92 =
30. 30.13 × 12 =
31. 31.7 × 6 =
32. 32.90 × 95 =
33. 33.13 × 7 =
34. 34.99 × 96 =
35. 35.91 × 96 =
36. 36.11 × 13 =
37. 37.1005 × 982 =
38. 38.93 × 98 =
39. 39.1033 × 1017 =
40. 40.1003 × 973 =

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