Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 942 · 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. 1.89 × 98 =
2. 2.11 × 14 =
3. 3.11 × 14 =
4. 4.9 × 7 =
5. 5.995 × 985 =
6. 6.113 × 87 =
7. 7.110 × 102 =
8. 8.11 × 9 =
9. 9.14 × 9 =
10. 10.111 × 98 =
11. 11.6 × 6 =
12. 12.991 × 972 =
13. 13.7 × 8 =
14. 14.92 × 99 =
15. 15.105 × 97 =
16. 16.12 × 11 =
17. 17.88 × 89 =
18. 18.110 × 98 =
19. 19.1016 × 982 =
20. 20.1009 × 1010 =
21. 21.13 × 13 =
22. 22.9 × 8 =
23. 23.102 × 110 =
24. 24.95 × 98 =
25. 25.1009 × 1012 =
26. 26.111 × 102 =
27. 27.6 × 6 =
28. 28.103 × 101 =
29. 29.1004 × 1036 =
30. 30.995 × 998 =
31. 31.86 × 98 =
32. 32.6 × 7 =
33. 33.114 × 99 =
34. 34.14 × 12 =
35. 35.102 × 110 =
36. 36.1001 × 1005 =
37. 37.107 × 106 =
38. 38.12 × 7 =
39. 39.86 × 89 =
40. 40.104 × 113 =

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