Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 93 · 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. 1.993 × 970 =
2. 2.95 × 92 =
3. 3.9 × 6 =
4. 4.112 × 110 =
5. 5.101 × 102 =
6. 6.9 × 8 =
7. 7.104 × 109 =
8. 8.11 × 12 =
9. 9.108 × 108 =
10. 10.11 × 12 =
11. 11.109 × 110 =
12. 12.115 × 112 =
13. 13.88 × 96 =
14. 14.1010 × 1039 =
15. 15.995 × 989 =
16. 16.13 × 14 =
17. 17.108 × 96 =
18. 18.968 × 977 =
19. 19.1032 × 992 =
20. 20.107 × 102 =
21. 21.7 × 6 =
22. 22.94 × 91 =
23. 23.109 × 98 =
24. 24.94 × 99 =
25. 25.6 × 6 =
26. 26.104 × 98 =
27. 27.93 × 94 =
28. 28.13 × 13 =
29. 29.95 × 93 =
30. 30.14 × 9 =
31. 31.104 × 94 =
32. 32.103 × 102 =
33. 33.104 × 97 =
34. 34.111 × 93 =
35. 35.966 × 989 =
36. 36.105 × 106 =
37. 37.113 × 102 =
38. 38.8 × 7 =
39. 39.109 × 95 =
40. 40.13 × 6 =

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