Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 117 · 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. 1.96 × 91 =
2. 2.110 × 112 =
3. 3.105 × 104 =
4. 4.981 × 995 =
5. 5.94 × 90 =
6. 6.96 × 93 =
7. 7.11 × 12 =
8. 8.14 × 12 =
9. 9.6 × 9 =
10. 10.8 × 8 =
11. 11.6 × 7 =
12. 12.12 × 14 =
13. 13.101 × 94 =
14. 14.9 × 8 =
15. 15.7 × 7 =
16. 16.86 × 95 =
17. 17.103 × 90 =
18. 18.984 × 982 =
19. 19.112 × 110 =
20. 20.107 × 103 =
21. 21.103 × 95 =
22. 22.14 × 12 =
23. 23.13 × 7 =
24. 24.94 × 94 =
25. 25.8 × 7 =
26. 26.114 × 110 =
27. 27.87 × 85 =
28. 28.102 × 97 =
29. 29.112 × 115 =
30. 30.987 × 966 =
31. 31.110 × 88 =
32. 32.972 × 991 =
33. 33.96 × 88 =
34. 34.97 × 85 =
35. 35.102 × 113 =
36. 36.1007 × 1033 =
37. 37.984 × 981 =
38. 38.115 × 93 =
39. 39.112 × 108 =
40. 40.1030 × 1007 =

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