Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 498 · 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. 1.112 × 93 =
2. 2.95 × 99 =
3. 3.86 × 90 =
4. 4.990 × 998 =
5. 5.94 × 88 =
6. 6.12 × 6 =
7. 7.14 × 13 =
8. 8.8 × 6 =
9. 9.99 × 99 =
10. 10.112 × 102 =
11. 11.6 × 8 =
12. 12.104 × 111 =
13. 13.7 × 7 =
14. 14.103 × 103 =
15. 15.102 × 90 =
16. 16.107 × 111 =
17. 17.109 × 105 =
18. 18.91 × 90 =
19. 19.6 × 6 =
20. 20.11 × 14 =
21. 21.91 × 95 =
22. 22.12 × 11 =
23. 23.87 × 89 =
24. 24.6 × 9 =
25. 25.1004 × 1019 =
26. 26.108 × 91 =
27. 27.115 × 105 =
28. 28.1003 × 1035 =
29. 29.102 × 93 =
30. 30.112 × 109 =
31. 31.9 × 8 =
32. 32.1001 × 964 =
33. 33.14 × 12 =
34. 34.106 × 108 =
35. 35.95 × 85 =
36. 36.93 × 96 =
37. 37.86 × 95 =
38. 38.87 × 89 =
39. 39.107 × 106 =
40. 40.92 × 98 =

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