Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 703 · 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. 1.92 × 87 =
2. 2.12 × 11 =
3. 3.103 × 90 =
4. 4.109 × 99 =
5. 5.113 × 107 =
6. 6.11 × 7 =
7. 7.1010 × 1024 =
8. 8.89 × 91 =
9. 9.1032 × 1012 =
10. 10.109 × 97 =
11. 11.110 × 97 =
12. 12.96 × 93 =
13. 13.7 × 8 =
14. 14.115 × 101 =
15. 15.11 × 6 =
16. 16.103 × 109 =
17. 17.9 × 8 =
18. 18.8 × 9 =
19. 19.8 × 6 =
20. 20.102 × 111 =
21. 21.13 × 13 =
22. 22.104 × 108 =
23. 23.984 × 995 =
24. 24.12 × 7 =
25. 25.6 × 6 =
26. 26.106 × 87 =
27. 27.95 × 96 =
28. 28.91 × 90 =
29. 29.102 × 104 =
30. 30.86 × 94 =
31. 31.1016 × 1003 =
32. 32.93 × 98 =
33. 33.110 × 108 =
34. 34.970 × 988 =
35. 35.6 × 7 =
36. 36.98 × 89 =
37. 37.94 × 87 =
38. 38.103 × 87 =
39. 39.99 × 98 =
40. 40.109 × 92 =

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