Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 629 · 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. 1.976 × 981 =
2. 2.104 × 97 =
3. 3.1011 × 1018 =
4. 4.106 × 102 =
5. 5.9 × 9 =
6. 6.112 × 101 =
7. 7.105 × 89 =
8. 8.6 × 7 =
9. 9.97 × 98 =
10. 10.8 × 9 =
11. 11.101 × 89 =
12. 12.110 × 115 =
13. 13.11 × 9 =
14. 14.108 × 111 =
15. 15.11 × 14 =
16. 16.1017 × 984 =
17. 17.109 × 110 =
18. 18.97 × 89 =
19. 19.969 × 999 =
20. 20.9 × 7 =
21. 21.98 × 95 =
22. 22.85 × 99 =
23. 23.91 × 86 =
24. 24.104 × 106 =
25. 25.8 × 7 =
26. 26.980 × 967 =
27. 27.94 × 87 =
28. 28.88 × 89 =
29. 29.11 × 8 =
30. 30.99 × 92 =
31. 31.13 × 9 =
32. 32.110 × 104 =
33. 33.9 × 7 =
34. 34.114 × 98 =
35. 35.7 × 9 =
36. 36.11 × 11 =
37. 37.91 × 96 =
38. 38.92 × 97 =
39. 39.999 × 984 =
40. 40.104 × 94 =

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