Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 87 · 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. 1.1029 × 1036 =
2. 2.111 × 112 =
3. 3.109 × 88 =
4. 4.101 × 115 =
5. 5.11 × 8 =
6. 6.9 × 9 =
7. 7.109 × 103 =
8. 8.96 × 92 =
9. 9.14 × 8 =
10. 10.108 × 96 =
11. 11.98 × 98 =
12. 12.110 × 110 =
13. 13.8 × 7 =
14. 14.106 × 109 =
15. 15.104 × 111 =
16. 16.101 × 96 =
17. 17.1025 × 965 =
18. 18.88 × 90 =
19. 19.113 × 93 =
20. 20.105 × 109 =
21. 21.92 × 99 =
22. 22.113 × 112 =
23. 23.6 × 9 =
24. 24.7 × 9 =
25. 25.14 × 13 =
26. 26.88 × 92 =
27. 27.11 × 8 =
28. 28.998 × 985 =
29. 29.1016 × 981 =
30. 30.971 × 991 =
31. 31.92 × 95 =
32. 32.111 × 87 =
33. 33.981 × 961 =
34. 34.106 × 114 =
35. 35.14 × 6 =
36. 36.8 × 8 =
37. 37.110 × 109 =
38. 38.9 × 7 =
39. 39.11 × 13 =
40. 40.11 × 13 =

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