Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 357 · 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. 1.112 × 105 =
2. 2.960 × 994 =
3. 3.11 × 12 =
4. 4.110 × 94 =
5. 5.1031 × 1029 =
6. 6.93 × 91 =
7. 7.103 × 102 =
8. 8.1007 × 996 =
9. 9.92 × 88 =
10. 10.115 × 107 =
11. 11.95 × 97 =
12. 12.984 × 964 =
13. 13.992 × 989 =
14. 14.103 × 89 =
15. 15.980 × 995 =
16. 16.1019 × 1037 =
17. 17.87 × 85 =
18. 18.94 × 97 =
19. 19.94 × 97 =
20. 20.966 × 967 =
21. 21.106 × 111 =
22. 22.98 × 86 =
23. 23.989 × 982 =
24. 24.94 × 99 =
25. 25.970 × 982 =
26. 26.1005 × 979 =
27. 27.14 × 14 =
28. 28.108 × 94 =
29. 29.101 × 106 =
30. 30.85 × 88 =
31. 31.1033 × 981 =
32. 32.98 × 90 =
33. 33.8 × 8 =
34. 34.13 × 13 =
35. 35.1035 × 963 =
36. 36.12 × 9 =
37. 37.991 × 970 =
38. 38.9 × 6 =
39. 39.115 × 104 =
40. 40.14 × 12 =

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