Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 680 · 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 × 89 =
2. 2.107 × 104 =
3. 3.101 × 91 =
4. 4.104 × 97 =
5. 5.989 × 966 =
6. 6.89 × 86 =
7. 7.986 × 966 =
8. 8.103 × 110 =
9. 9.1004 × 991 =
10. 10.110 × 109 =
11. 11.104 × 85 =
12. 12.988 × 968 =
13. 13.96 × 88 =
14. 14.98 × 92 =
15. 15.11 × 13 =
16. 16.11 × 7 =
17. 17.94 × 89 =
18. 18.112 × 103 =
19. 19.93 × 90 =
20. 20.107 × 95 =
21. 21.104 × 88 =
22. 22.86 × 91 =
23. 23.87 × 95 =
24. 24.94 × 98 =
25. 25.93 × 92 =
26. 26.114 × 86 =
27. 27.1009 × 1002 =
28. 28.96 × 88 =
29. 29.98 × 92 =
30. 30.90 × 91 =
31. 31.989 × 963 =
32. 32.973 × 992 =
33. 33.14 × 12 =
34. 34.13 × 8 =
35. 35.108 × 102 =
36. 36.104 × 93 =
37. 37.99 × 95 =
38. 38.14 × 7 =
39. 39.106 × 96 =
40. 40.110 × 92 =

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