Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 246 · 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. 1.114 × 104 =
2. 2.1033 × 1034 =
3. 3.104 × 92 =
4. 4.111 × 88 =
5. 5.6 × 9 =
6. 6.105 × 105 =
7. 7.110 × 113 =
8. 8.85 × 95 =
9. 9.1028 × 975 =
10. 10.115 × 107 =
11. 11.14 × 12 =
12. 12.13 × 7 =
13. 13.103 × 94 =
14. 14.115 × 113 =
15. 15.11 × 7 =
16. 16.96 × 99 =
17. 17.1007 × 963 =
18. 18.88 × 93 =
19. 19.8 × 8 =
20. 20.109 × 113 =
21. 21.8 × 9 =
22. 22.1029 × 1004 =
23. 23.98 × 95 =
24. 24.87 × 86 =
25. 25.6 × 6 =
26. 26.7 × 6 =
27. 27.13 × 9 =
28. 28.1031 × 997 =
29. 29.11 × 7 =
30. 30.101 × 102 =
31. 31.103 × 96 =
32. 32.12 × 9 =
33. 33.107 × 108 =
34. 34.113 × 95 =
35. 35.97 × 85 =
36. 36.85 × 92 =
37. 37.95 × 96 =
38. 38.97 × 88 =
39. 39.971 × 991 =
40. 40.112 × 107 =

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