Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 282 · 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. 1.970 × 963 =
2. 2.990 × 986 =
3. 3.9 × 8 =
4. 4.98 × 97 =
5. 5.14 × 8 =
6. 6.12 × 12 =
7. 7.85 × 98 =
8. 8.11 × 14 =
9. 9.101 × 106 =
10. 10.108 × 92 =
11. 11.7 × 8 =
12. 12.14 × 12 =
13. 13.972 × 998 =
14. 14.1003 × 974 =
15. 15.13 × 9 =
16. 16.1037 × 987 =
17. 17.103 × 104 =
18. 18.13 × 12 =
19. 19.109 × 102 =
20. 20.11 × 14 =
21. 21.1005 × 1010 =
22. 22.106 × 97 =
23. 23.92 × 96 =
24. 24.1022 × 989 =
25. 25.12 × 14 =
26. 26.13 × 11 =
27. 27.112 × 108 =
28. 28.86 × 85 =
29. 29.983 × 990 =
30. 30.14 × 9 =
31. 31.88 × 95 =
32. 32.13 × 9 =
33. 33.108 × 99 =
34. 34.110 × 109 =
35. 35.14 × 13 =
36. 36.108 × 96 =
37. 37.8 × 9 =
38. 38.92 × 95 =
39. 39.110 × 115 =
40. 40.12 × 14 =

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