Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 410 · 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. 2.87 × 90 =
3. 3.114 × 102 =
4. 4.94 × 98 =
5. 5.12 × 11 =
6. 6.87 × 98 =
7. 7.98 × 92 =
8. 8.973 × 968 =
9. 9.13 × 12 =
10. 10.113 × 85 =
11. 11.1037 × 1027 =
12. 12.987 × 964 =
13. 13.1012 × 1028 =
14. 14.7 × 8 =
15. 15.102 × 92 =
16. 16.102 × 98 =
17. 17.12 × 9 =
18. 18.86 × 86 =
19. 19.104 × 92 =
20. 20.984 × 973 =
21. 21.1035 × 1036 =
22. 22.106 × 115 =
23. 23.8 × 6 =
24. 24.103 × 95 =
25. 25.11 × 11 =
26. 26.13 × 7 =
27. 27.106 × 98 =
28. 28.90 × 91 =
29. 29.96 × 86 =
30. 30.102 × 115 =
31. 31.107 × 111 =
32. 32.94 × 97 =
33. 33.112 × 94 =
34. 34.112 × 99 =
35. 35.97 × 90 =
36. 36.14 × 6 =
37. 37.114 × 97 =
38. 38.94 × 86 =
39. 39.6 × 9 =
40. 40.1030 × 1035 =

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