Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 41 · 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. 1.115 × 102 =
2. 2.963 × 976 =
3. 3.1017 × 983 =
4. 4.6 × 6 =
5. 5.999 × 996 =
6. 6.88 × 87 =
7. 7.92 × 85 =
8. 8.102 × 109 =
9. 9.101 × 111 =
10. 10.91 × 90 =
11. 11.98 × 93 =
12. 12.13 × 13 =
13. 13.11 × 7 =
14. 14.13 × 11 =
15. 15.101 × 94 =
16. 16.981 × 979 =
17. 17.86 × 94 =
18. 18.87 × 87 =
19. 19.95 × 86 =
20. 20.11 × 9 =
21. 21.9 × 9 =
22. 22.14 × 13 =
23. 23.95 × 85 =
24. 24.102 × 113 =
25. 25.98 × 85 =
26. 26.107 × 105 =
27. 27.13 × 11 =
28. 28.98 × 92 =
29. 29.13 × 6 =
30. 30.102 × 103 =
31. 31.104 × 91 =
32. 32.99 × 88 =
33. 33.85 × 87 =
34. 34.13 × 8 =
35. 35.1018 × 966 =
36. 36.98 × 97 =
37. 37.89 × 88 =
38. 38.106 × 96 =
39. 39.106 × 96 =
40. 40.964 × 964 =

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