Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 49 · 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. 1.102 × 90 =
2. 2.86 × 87 =
3. 3.110 × 104 =
4. 4.114 × 106 =
5. 5.99 × 87 =
6. 6.112 × 105 =
7. 7.11 × 13 =
8. 8.105 × 101 =
9. 9.91 × 88 =
10. 10.13 × 8 =
11. 11.90 × 92 =
12. 12.89 × 90 =
13. 13.1031 × 1031 =
14. 14.13 × 11 =
15. 15.1040 × 968 =
16. 16.111 × 97 =
17. 17.113 × 103 =
18. 18.93 × 97 =
19. 19.13 × 7 =
20. 20.105 × 105 =
21. 21.993 × 982 =
22. 22.7 × 7 =
23. 23.1029 × 1015 =
24. 24.114 × 107 =
25. 25.11 × 8 =
26. 26.1015 × 1020 =
27. 27.90 × 91 =
28. 28.1007 × 1029 =
29. 29.94 × 88 =
30. 30.97 × 90 =
31. 31.92 × 98 =
32. 32.997 × 987 =
33. 33.978 × 989 =
34. 34.106 × 101 =
35. 35.7 × 7 =
36. 36.106 × 109 =
37. 37.6 × 8 =
38. 38.91 × 97 =
39. 39.108 × 85 =
40. 40.11 × 8 =

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