Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 259 · 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. 1.110 × 109 =
2. 2.102 × 104 =
3. 3.1039 × 1029 =
4. 4.972 × 977 =
5. 5.86 × 95 =
6. 6.102 × 87 =
7. 7.91 × 89 =
8. 8.101 × 108 =
9. 9.11 × 6 =
10. 10.1020 × 1018 =
11. 11.7 × 7 =
12. 12.88 × 98 =
13. 13.1026 × 966 =
14. 14.99 × 95 =
15. 15.113 × 114 =
16. 16.97 × 85 =
17. 17.8 × 7 =
18. 18.9 × 8 =
19. 19.109 × 95 =
20. 20.967 × 972 =
21. 21.90 × 85 =
22. 22.7 × 9 =
23. 23.114 × 88 =
24. 24.12 × 7 =
25. 25.1008 × 1019 =
26. 26.93 × 86 =
27. 27.6 × 9 =
28. 28.89 × 91 =
29. 29.14 × 9 =
30. 30.7 × 9 =
31. 31.14 × 13 =
32. 32.975 × 978 =
33. 33.98 × 92 =
34. 34.97 × 95 =
35. 35.1035 × 986 =
36. 36.112 × 97 =
37. 37.990 × 976 =
38. 38.6 × 6 =
39. 39.11 × 14 =
40. 40.95 × 93 =

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