Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 379 · 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 × 971 =
2. 2.1008 × 1028 =
3. 3.11 × 8 =
4. 4.99 × 98 =
5. 5.87 × 98 =
6. 6.8 × 8 =
7. 7.107 × 96 =
8. 8.13 × 14 =
9. 9.87 × 94 =
10. 10.107 × 88 =
11. 11.980 × 993 =
12. 12.12 × 11 =
13. 13.99 × 97 =
14. 14.101 × 99 =
15. 15.1003 × 996 =
16. 16.9 × 6 =
17. 17.7 × 7 =
18. 18.95 × 90 =
19. 19.977 × 995 =
20. 20.114 × 92 =
21. 21.970 × 971 =
22. 22.995 × 998 =
23. 23.85 × 92 =
24. 24.90 × 90 =
25. 25.103 × 85 =
26. 26.86 × 90 =
27. 27.960 × 990 =
28. 28.6 × 6 =
29. 29.106 × 89 =
30. 30.13 × 11 =
31. 31.85 × 86 =
32. 32.1016 × 1035 =
33. 33.1023 × 1002 =
34. 34.88 × 98 =
35. 35.1005 × 976 =
36. 36.1031 × 968 =
37. 37.1008 × 1007 =
38. 38.102 × 89 =
39. 39.6 × 8 =
40. 40.110 × 89 =

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