Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 244 · 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. 1.7 × 8 =
2. 2.92 × 87 =
3. 3.1007 × 1024 =
4. 4.9 × 9 =
5. 5.113 × 104 =
6. 6.98 × 96 =
7. 7.1011 × 989 =
8. 8.104 × 112 =
9. 9.113 × 105 =
10. 10.1033 × 1027 =
11. 11.11 × 13 =
12. 12.1014 × 1001 =
13. 13.6 × 8 =
14. 14.97 × 85 =
15. 15.1012 × 1003 =
16. 16.6 × 6 =
17. 17.103 × 111 =
18. 18.7 × 9 =
19. 19.102 × 113 =
20. 20.11 × 6 =
21. 21.103 × 102 =
22. 22.1020 × 993 =
23. 23.111 × 110 =
24. 24.92 × 86 =
25. 25.88 × 86 =
26. 26.107 × 93 =
27. 27.112 × 106 =
28. 28.989 × 996 =
29. 29.12 × 12 =
30. 30.88 × 90 =
31. 31.968 × 995 =
32. 32.9 × 6 =
33. 33.94 × 95 =
34. 34.92 × 99 =
35. 35.97 × 94 =
36. 36.1037 × 1017 =
37. 37.8 × 6 =
38. 38.9 × 8 =
39. 39.104 × 85 =
40. 40.1012 × 998 =

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