Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 153 · 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. 1.9 × 6 =
2. 2.993 × 996 =
3. 3.12 × 7 =
4. 4.103 × 113 =
5. 5.1040 × 1032 =
6. 6.12 × 8 =
7. 7.8 × 7 =
8. 8.104 × 106 =
9. 9.1006 × 961 =
10. 10.9 × 7 =
11. 11.112 × 105 =
12. 12.8 × 8 =
13. 13.111 × 96 =
14. 14.12 × 9 =
15. 15.14 × 13 =
16. 16.14 × 9 =
17. 17.89 × 88 =
18. 18.87 × 86 =
19. 19.1036 × 977 =
20. 20.109 × 108 =
21. 21.108 × 96 =
22. 22.7 × 7 =
23. 23.1037 × 974 =
24. 24.981 × 988 =
25. 25.89 × 94 =
26. 26.112 × 105 =
27. 27.9 × 7 =
28. 28.1023 × 1016 =
29. 29.8 × 9 =
30. 30.103 × 102 =
31. 31.1039 × 989 =
32. 32.94 × 94 =
33. 33.11 × 11 =
34. 34.93 × 85 =
35. 35.106 × 94 =
36. 36.86 × 96 =
37. 37.104 × 107 =
38. 38.1032 × 1002 =
39. 39.101 × 97 =
40. 40.106 × 85 =

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