Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 314 · 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. 1.992 × 980 =
2. 2.113 × 112 =
3. 3.107 × 104 =
4. 4.111 × 96 =
5. 5.101 × 91 =
6. 6.98 × 93 =
7. 7.104 × 106 =
8. 8.98 × 92 =
9. 9.102 × 95 =
10. 10.89 × 98 =
11. 11.13 × 13 =
12. 12.93 × 91 =
13. 13.105 × 102 =
14. 14.93 × 94 =
15. 15.102 × 113 =
16. 16.990 × 998 =
17. 17.1029 × 1004 =
18. 18.105 × 98 =
19. 19.11 × 9 =
20. 20.11 × 7 =
21. 21.85 × 94 =
22. 22.8 × 8 =
23. 23.86 × 89 =
24. 24.11 × 7 =
25. 25.991 × 988 =
26. 26.98 × 89 =
27. 27.8 × 9 =
28. 28.98 × 87 =
29. 29.993 × 960 =
30. 30.1007 × 1016 =
31. 31.89 × 86 =
32. 32.1037 × 992 =
33. 33.11 × 14 =
34. 34.96 × 99 =
35. 35.1020 × 1004 =
36. 36.7 × 8 =
37. 37.1011 × 1025 =
38. 38.1004 × 1037 =
39. 39.108 × 104 =
40. 40.85 × 98 =

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