Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 35 · 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. 1.89 × 94 =
2. 2.103 × 87 =
3. 3.97 × 90 =
4. 4.1002 × 982 =
5. 5.85 × 98 =
6. 6.98 × 91 =
7. 7.14 × 14 =
8. 8.87 × 90 =
9. 9.113 × 114 =
10. 10.7 × 9 =
11. 11.85 × 99 =
12. 12.7 × 8 =
13. 13.9 × 7 =
14. 14.1010 × 977 =
15. 15.1024 × 960 =
16. 16.103 × 113 =
17. 17.1030 × 1018 =
18. 18.89 × 87 =
19. 19.13 × 9 =
20. 20.95 × 91 =
21. 21.88 × 87 =
22. 22.105 × 107 =
23. 23.112 × 107 =
24. 24.112 × 96 =
25. 25.7 × 9 =
26. 26.1031 × 999 =
27. 27.8 × 6 =
28. 28.976 × 979 =
29. 29.9 × 9 =
30. 30.106 × 95 =
31. 31.112 × 102 =
32. 32.967 × 988 =
33. 33.7 × 6 =
34. 34.107 × 93 =
35. 35.1005 × 1011 =
36. 36.85 × 97 =
37. 37.95 × 94 =
38. 38.88 × 99 =
39. 39.1040 × 986 =
40. 40.106 × 109 =

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