Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 332 · 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. 1.108 × 103 =
2. 2.95 × 86 =
3. 3.98 × 99 =
4. 4.8 × 8 =
5. 5.9 × 9 =
6. 6.8 × 8 =
7. 7.107 × 111 =
8. 8.1012 × 1010 =
9. 9.12 × 11 =
10. 10.86 × 91 =
11. 11.11 × 8 =
12. 12.101 × 108 =
13. 13.975 × 986 =
14. 14.99 × 93 =
15. 15.99 × 90 =
16. 16.112 × 112 =
17. 17.968 × 966 =
18. 18.963 × 961 =
19. 19.12 × 14 =
20. 20.1034 × 1001 =
21. 21.103 × 89 =
22. 22.1001 × 983 =
23. 23.105 × 99 =
24. 24.88 × 91 =
25. 25.13 × 13 =
26. 26.109 × 96 =
27. 27.9 × 8 =
28. 28.93 × 88 =
29. 29.92 × 86 =
30. 30.91 × 87 =
31. 31.14 × 6 =
32. 32.8 × 7 =
33. 33.89 × 99 =
34. 34.88 × 93 =
35. 35.11 × 13 =
36. 36.1014 × 970 =
37. 37.106 × 106 =
38. 38.1004 × 1032 =
39. 39.93 × 92 =
40. 40.11 × 8 =

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