Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 684 · 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. 1.95 × 99 =
2. 2.112 × 103 =
3. 3.7 × 8 =
4. 4.102 × 96 =
5. 5.1004 × 999 =
6. 6.11 × 13 =
7. 7.95 × 97 =
8. 8.97 × 94 =
9. 9.89 × 99 =
10. 10.94 × 89 =
11. 11.11 × 6 =
12. 12.109 × 97 =
13. 13.7 × 8 =
14. 14.14 × 13 =
15. 15.12 × 6 =
16. 16.91 × 93 =
17. 17.12 × 11 =
18. 18.113 × 114 =
19. 19.6 × 8 =
20. 20.110 × 97 =
21. 21.98 × 94 =
22. 22.8 × 7 =
23. 23.104 × 111 =
24. 24.9 × 8 =
25. 25.12 × 12 =
26. 26.96 × 90 =
27. 27.1003 × 1016 =
28. 28.112 × 99 =
29. 29.112 × 103 =
30. 30.105 × 107 =
31. 31.7 × 6 =
32. 32.105 × 101 =
33. 33.14 × 12 =
34. 34.12 × 13 =
35. 35.9 × 9 =
36. 36.89 × 98 =
37. 37.977 × 997 =
38. 38.102 × 103 =
39. 39.98 × 89 =
40. 40.105 × 86 =

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