Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 656 · 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. 1.86 × 98 =
2. 2.1008 × 997 =
3. 3.85 × 96 =
4. 4.103 × 108 =
5. 5.108 × 115 =
6. 6.14 × 12 =
7. 7.101 × 99 =
8. 8.88 × 86 =
9. 9.11 × 12 =
10. 10.105 × 97 =
11. 11.114 × 98 =
12. 12.14 × 6 =
13. 13.88 × 96 =
14. 14.88 × 85 =
15. 15.114 × 107 =
16. 16.8 × 8 =
17. 17.9 × 9 =
18. 18.13 × 11 =
19. 19.111 × 87 =
20. 20.6 × 9 =
21. 21.101 × 108 =
22. 22.1019 × 1017 =
23. 23.99 × 88 =
24. 24.103 × 91 =
25. 25.106 × 110 =
26. 26.8 × 6 =
27. 27.106 × 101 =
28. 28.108 × 113 =
29. 29.98 × 89 =
30. 30.114 × 105 =
31. 31.110 × 102 =
32. 32.9 × 7 =
33. 33.11 × 14 =
34. 34.104 × 90 =
35. 35.12 × 8 =
36. 36.111 × 88 =
37. 37.14 × 11 =
38. 38.12 × 9 =
39. 39.8 × 8 =
40. 40.1040 × 1037 =

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