Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 292 · 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. 1.996 × 988 =
2. 2.113 × 102 =
3. 3.13 × 13 =
4. 4.11 × 8 =
5. 5.1002 × 1019 =
6. 6.95 × 95 =
7. 7.1007 × 999 =
8. 8.1004 × 1002 =
9. 9.107 × 93 =
10. 10.996 × 982 =
11. 11.7 × 9 =
12. 12.96 × 88 =
13. 13.12 × 14 =
14. 14.6 × 9 =
15. 15.11 × 12 =
16. 16.1038 × 964 =
17. 17.103 × 95 =
18. 18.980 × 969 =
19. 19.113 × 101 =
20. 20.107 × 110 =
21. 21.11 × 7 =
22. 22.91 × 92 =
23. 23.1023 × 1039 =
24. 24.1008 × 976 =
25. 25.106 × 101 =
26. 26.85 × 97 =
27. 27.98 × 97 =
28. 28.1040 × 1009 =
29. 29.112 × 91 =
30. 30.112 × 97 =
31. 31.108 × 112 =
32. 32.13 × 9 =
33. 33.11 × 9 =
34. 34.113 × 107 =
35. 35.99 × 98 =
36. 36.93 × 93 =
37. 37.98 × 97 =
38. 38.112 × 101 =
39. 39.976 × 966 =
40. 40.101 × 93 =

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