Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 850 · 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. 1.994 × 995 =
2. 2.1028 × 987 =
3. 3.90 × 97 =
4. 4.12 × 6 =
5. 5.983 × 966 =
6. 6.91 × 96 =
7. 7.111 × 90 =
8. 8.88 × 88 =
9. 9.980 × 973 =
10. 10.92 × 97 =
11. 11.108 × 89 =
12. 12.11 × 8 =
13. 13.89 × 95 =
14. 14.103 × 92 =
15. 15.94 × 87 =
16. 16.87 × 86 =
17. 17.7 × 9 =
18. 18.113 × 99 =
19. 19.104 × 99 =
20. 20.111 × 95 =
21. 21.90 × 99 =
22. 22.91 × 88 =
23. 23.7 × 6 =
24. 24.93 × 97 =
25. 25.109 × 87 =
26. 26.91 × 98 =
27. 27.99 × 86 =
28. 28.106 × 102 =
29. 29.13 × 11 =
30. 30.102 × 113 =
31. 31.93 × 85 =
32. 32.102 × 102 =
33. 33.1003 × 985 =
34. 34.87 × 86 =
35. 35.89 × 98 =
36. 36.8 × 6 =
37. 37.109 × 112 =
38. 38.96 × 99 =
39. 39.12 × 12 =
40. 40.989 × 980 =

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