Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 581 · 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. 1.11 × 7 =
2. 2.1040 × 960 =
3. 3.104 × 98 =
4. 4.87 × 99 =
5. 5.999 × 982 =
6. 6.12 × 11 =
7. 7.97 × 91 =
8. 8.93 × 98 =
9. 9.14 × 6 =
10. 10.110 × 105 =
11. 11.13 × 9 =
12. 12.999 × 985 =
13. 13.13 × 11 =
14. 14.1026 × 973 =
15. 15.102 × 92 =
16. 16.101 × 103 =
17. 17.98 × 88 =
18. 18.113 × 88 =
19. 19.87 × 99 =
20. 20.1035 × 987 =
21. 21.95 × 85 =
22. 22.9 × 6 =
23. 23.113 × 92 =
24. 24.961 × 999 =
25. 25.104 × 101 =
26. 26.103 × 114 =
27. 27.104 × 111 =
28. 28.97 × 89 =
29. 29.11 × 9 =
30. 30.91 × 86 =
31. 31.110 × 99 =
32. 32.11 × 14 =
33. 33.86 × 99 =
34. 34.104 × 88 =
35. 35.13 × 12 =
36. 36.7 × 9 =
37. 37.108 × 99 =
38. 38.6 × 6 =
39. 39.11 × 14 =
40. 40.8 × 9 =

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