Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 119 · 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. 1.106 × 111 =
2. 2.1006 × 1015 =
3. 3.9 × 9 =
4. 4.7 × 8 =
5. 5.104 × 96 =
6. 6.12 × 8 =
7. 7.85 × 91 =
8. 8.13 × 11 =
9. 9.87 × 94 =
10. 10.112 × 89 =
11. 11.101 × 114 =
12. 12.1021 × 1031 =
13. 13.6 × 8 =
14. 14.14 × 13 =
15. 15.105 × 111 =
16. 16.12 × 11 =
17. 17.12 × 9 =
18. 18.92 × 96 =
19. 19.7 × 6 =
20. 20.102 × 105 =
21. 21.96 × 96 =
22. 22.112 × 86 =
23. 23.102 × 92 =
24. 24.13 × 9 =
25. 25.8 × 9 =
26. 26.92 × 94 =
27. 27.12 × 12 =
28. 28.88 × 85 =
29. 29.92 × 97 =
30. 30.90 × 98 =
31. 31.11 × 12 =
32. 32.7 × 6 =
33. 33.90 × 98 =
34. 34.88 × 92 =
35. 35.1022 × 1016 =
36. 36.105 × 105 =
37. 37.9 × 7 =
38. 38.91 × 94 =
39. 39.6 × 6 =
40. 40.85 × 96 =

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