Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 159 · 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. 1.101 × 89 =
2. 2.102 × 91 =
3. 3.113 × 105 =
4. 4.108 × 88 =
5. 5.110 × 88 =
6. 6.101 × 101 =
7. 7.11 × 8 =
8. 8.109 × 115 =
9. 9.87 × 99 =
10. 10.1014 × 1022 =
11. 11.110 × 93 =
12. 12.6 × 6 =
13. 13.97 × 95 =
14. 14.9 × 6 =
15. 15.98 × 96 =
16. 16.11 × 13 =
17. 17.95 × 95 =
18. 18.109 × 112 =
19. 19.110 × 102 =
20. 20.95 × 85 =
21. 21.89 × 89 =
22. 22.112 × 92 =
23. 23.114 × 92 =
24. 24.13 × 11 =
25. 25.988 × 982 =
26. 26.11 × 6 =
27. 27.13 × 11 =
28. 28.95 × 86 =
29. 29.12 × 11 =
30. 30.1025 × 995 =
31. 31.960 × 992 =
32. 32.112 × 104 =
33. 33.999 × 985 =
34. 34.96 × 87 =
35. 35.7 × 9 =
36. 36.95 × 88 =
37. 37.101 × 94 =
38. 38.13 × 14 =
39. 39.1012 × 1039 =
40. 40.7 × 8 =

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