Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 775 · 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. 1.103 × 107 =
2. 2.7 × 7 =
3. 3.101 × 101 =
4. 4.105 × 87 =
5. 5.104 × 110 =
6. 6.98 × 92 =
7. 7.12 × 11 =
8. 8.113 × 102 =
9. 9.103 × 86 =
10. 10.13 × 13 =
11. 11.99 × 97 =
12. 12.99 × 99 =
13. 13.8 × 6 =
14. 14.11 × 13 =
15. 15.996 × 960 =
16. 16.94 × 98 =
17. 17.112 × 109 =
18. 18.112 × 91 =
19. 19.999 × 997 =
20. 20.110 × 98 =
21. 21.105 × 115 =
22. 22.11 × 11 =
23. 23.91 × 93 =
24. 24.12 × 6 =
25. 25.1020 × 963 =
26. 26.114 × 92 =
27. 27.89 × 85 =
28. 28.109 × 94 =
29. 29.109 × 114 =
30. 30.105 × 104 =
31. 31.85 × 93 =
32. 32.107 × 111 =
33. 33.105 × 112 =
34. 34.114 × 114 =
35. 35.13 × 7 =
36. 36.90 × 87 =
37. 37.94 × 88 =
38. 38.1015 × 977 =
39. 39.89 × 99 =
40. 40.13 × 8 =

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