Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 742 · 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. 1.1004 × 1024 =
2. 2.1035 × 1022 =
3. 3.112 × 94 =
4. 4.102 × 113 =
5. 5.9 × 8 =
6. 6.14 × 6 =
7. 7.91 × 87 =
8. 8.7 × 7 =
9. 9.99 × 89 =
10. 10.12 × 7 =
11. 11.111 × 112 =
12. 12.109 × 90 =
13. 13.107 × 107 =
14. 14.97 × 94 =
15. 15.1040 × 1037 =
16. 16.101 × 88 =
17. 17.13 × 6 =
18. 18.1011 × 998 =
19. 19.11 × 7 =
20. 20.13 × 14 =
21. 21.96 × 88 =
22. 22.1001 × 986 =
23. 23.92 × 90 =
24. 24.9 × 9 =
25. 25.969 × 972 =
26. 26.87 × 93 =
27. 27.101 × 87 =
28. 28.8 × 7 =
29. 29.102 × 114 =
30. 30.102 × 87 =
31. 31.1021 × 1028 =
32. 32.11 × 14 =
33. 33.11 × 9 =
34. 34.9 × 6 =
35. 35.111 × 104 =
36. 36.109 × 115 =
37. 37.1016 × 992 =
38. 38.102 × 106 =
39. 39.6 × 9 =
40. 40.1023 × 1036 =

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