Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 891 · 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. 1.1010 × 975 =
2. 2.7 × 9 =
3. 3.13 × 9 =
4. 4.8 × 8 =
5. 5.97 × 85 =
6. 6.13 × 14 =
7. 7.960 × 998 =
8. 8.12 × 14 =
9. 9.979 × 975 =
10. 10.1028 × 1037 =
11. 11.13 × 13 =
12. 12.107 × 92 =
13. 13.101 × 88 =
14. 14.11 × 11 =
15. 15.97 × 93 =
16. 16.92 × 89 =
17. 17.1002 × 1040 =
18. 18.961 × 971 =
19. 19.6 × 8 =
20. 20.108 × 109 =
21. 21.97 × 92 =
22. 22.102 × 115 =
23. 23.13 × 11 =
24. 24.99 × 98 =
25. 25.87 × 89 =
26. 26.101 × 113 =
27. 27.106 × 105 =
28. 28.7 × 6 =
29. 29.6 × 7 =
30. 30.14 × 9 =
31. 31.115 × 113 =
32. 32.971 × 989 =
33. 33.1016 × 1036 =
34. 34.85 × 95 =
35. 35.108 × 91 =
36. 36.8 × 7 =
37. 37.91 × 96 =
38. 38.11 × 8 =
39. 39.98 × 98 =
40. 40.1006 × 1036 =

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