Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 535 · 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. 1.969 × 990 =
2. 2.1010 × 964 =
3. 3.91 × 91 =
4. 4.13 × 12 =
5. 5.111 × 113 =
6. 6.993 × 969 =
7. 7.88 × 89 =
8. 8.9 × 8 =
9. 9.1016 × 961 =
10. 10.106 × 99 =
11. 11.6 × 8 =
12. 12.1029 × 1017 =
13. 13.103 × 105 =
14. 14.95 × 99 =
15. 15.87 × 99 =
16. 16.97 × 99 =
17. 17.11 × 13 =
18. 18.102 × 97 =
19. 19.95 × 91 =
20. 20.993 × 989 =
21. 21.106 × 112 =
22. 22.11 × 14 =
23. 23.1004 × 1027 =
24. 24.105 × 95 =
25. 25.93 × 98 =
26. 26.11 × 8 =
27. 27.110 × 112 =
28. 28.6 × 8 =
29. 29.106 × 85 =
30. 30.7 × 9 =
31. 31.89 × 93 =
32. 32.968 × 994 =
33. 33.14 × 14 =
34. 34.9 × 7 =
35. 35.6 × 7 =
36. 36.111 × 91 =
37. 37.995 × 996 =
38. 38.93 × 92 =
39. 39.105 × 104 =
40. 40.111 × 110 =

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