Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 899 · 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. 1.14 × 11 =
2. 2.114 × 115 =
3. 3.6 × 8 =
4. 4.113 × 103 =
5. 5.93 × 88 =
6. 6.1013 × 1027 =
7. 7.961 × 995 =
8. 8.11 × 12 =
9. 9.105 × 109 =
10. 10.94 × 89 =
11. 11.101 × 105 =
12. 12.115 × 90 =
13. 13.12 × 12 =
14. 14.113 × 98 =
15. 15.104 × 93 =
16. 16.6 × 6 =
17. 17.104 × 88 =
18. 18.97 × 96 =
19. 19.105 × 98 =
20. 20.979 × 990 =
21. 21.94 × 98 =
22. 22.108 × 97 =
23. 23.89 × 98 =
24. 24.11 × 12 =
25. 25.89 × 92 =
26. 26.110 × 95 =
27. 27.98 × 97 =
28. 28.97 × 89 =
29. 29.11 × 7 =
30. 30.105 × 99 =
31. 31.108 × 110 =
32. 32.974 × 993 =
33. 33.12 × 13 =
34. 34.113 × 96 =
35. 35.8 × 7 =
36. 36.94 × 94 =
37. 37.12 × 9 =
38. 38.1036 × 1011 =
39. 39.113 × 114 =
40. 40.93 × 96 =

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