Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 178 · 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. 1.104 × 93 =
2. 2.114 × 107 =
3. 3.88 × 99 =
4. 4.977 × 966 =
5. 5.98 × 94 =
6. 6.96 × 96 =
7. 7.11 × 8 =
8. 8.85 × 99 =
9. 9.961 × 960 =
10. 10.102 × 108 =
11. 11.88 × 85 =
12. 12.1028 × 1018 =
13. 13.6 × 7 =
14. 14.11 × 13 =
15. 15.973 × 988 =
16. 16.115 × 102 =
17. 17.89 × 97 =
18. 18.1033 × 965 =
19. 19.11 × 12 =
20. 20.94 × 99 =
21. 21.11 × 8 =
22. 22.85 × 87 =
23. 23.86 × 89 =
24. 24.13 × 9 =
25. 25.88 × 99 =
26. 26.8 × 8 =
27. 27.13 × 11 =
28. 28.92 × 90 =
29. 29.88 × 97 =
30. 30.104 × 104 =
31. 31.995 × 992 =
32. 32.1002 × 999 =
33. 33.996 × 979 =
34. 34.1002 × 989 =
35. 35.1022 × 1007 =
36. 36.112 × 95 =
37. 37.13 × 14 =
38. 38.989 × 986 =
39. 39.109 × 105 =
40. 40.87 × 93 =

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