Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 652 · 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. 1.92 × 86 =
2. 2.89 × 90 =
3. 3.1036 × 978 =
4. 4.1014 × 979 =
5. 5.88 × 94 =
6. 6.8 × 9 =
7. 7.1016 × 1008 =
8. 8.1003 × 982 =
9. 9.11 × 11 =
10. 10.103 × 87 =
11. 11.6 × 6 =
12. 12.95 × 97 =
13. 13.99 × 98 =
14. 14.88 × 85 =
15. 15.11 × 12 =
16. 16.98 × 95 =
17. 17.110 × 104 =
18. 18.1020 × 1011 =
19. 19.9 × 8 =
20. 20.8 × 7 =
21. 21.89 × 93 =
22. 22.14 × 12 =
23. 23.113 × 90 =
24. 24.992 × 985 =
25. 25.105 × 111 =
26. 26.114 × 97 =
27. 27.102 × 109 =
28. 28.9 × 7 =
29. 29.103 × 97 =
30. 30.99 × 91 =
31. 31.9 × 8 =
32. 32.94 × 99 =
33. 33.9 × 8 =
34. 34.115 × 111 =
35. 35.1019 × 1030 =
36. 36.9 × 9 =
37. 37.103 × 89 =
38. 38.12 × 9 =
39. 39.102 × 112 =
40. 40.990 × 996 =

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