Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 288 · 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. 1.111 × 98 =
2. 2.12 × 8 =
3. 3.9 × 6 =
4. 4.92 × 98 =
5. 5.93 × 90 =
6. 6.91 × 94 =
7. 7.1037 × 997 =
8. 8.1021 × 1022 =
9. 9.110 × 96 =
10. 10.14 × 13 =
11. 11.96 × 99 =
12. 12.963 × 961 =
13. 13.101 × 104 =
14. 14.90 × 87 =
15. 15.115 × 88 =
16. 16.6 × 8 =
17. 17.14 × 14 =
18. 18.1024 × 1030 =
19. 19.962 × 990 =
20. 20.105 × 103 =
21. 21.12 × 11 =
22. 22.6 × 9 =
23. 23.91 × 97 =
24. 24.105 × 110 =
25. 25.91 × 99 =
26. 26.111 × 103 =
27. 27.966 × 970 =
28. 28.112 × 115 =
29. 29.91 × 98 =
30. 30.1015 × 1027 =
31. 31.93 × 89 =
32. 32.13 × 12 =
33. 33.14 × 11 =
34. 34.87 × 94 =
35. 35.98 × 95 =
36. 36.993 × 997 =
37. 37.97 × 98 =
38. 38.103 × 107 =
39. 39.93 × 94 =
40. 40.994 × 975 =

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