Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 734 · 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. 1.993 × 991 =
2. 2.101 × 110 =
3. 3.1015 × 983 =
4. 4.997 × 989 =
5. 5.9 × 9 =
6. 6.85 × 88 =
7. 7.7 × 6 =
8. 8.97 × 96 =
9. 9.85 × 85 =
10. 10.14 × 11 =
11. 11.8 × 7 =
12. 12.997 × 976 =
13. 13.108 × 105 =
14. 14.1018 × 1034 =
15. 15.6 × 7 =
16. 16.103 × 106 =
17. 17.13 × 14 =
18. 18.115 × 104 =
19. 19.103 × 110 =
20. 20.12 × 14 =
21. 21.105 × 87 =
22. 22.94 × 99 =
23. 23.111 × 94 =
24. 24.91 × 93 =
25. 25.97 × 99 =
26. 26.960 × 997 =
27. 27.973 × 990 =
28. 28.96 × 99 =
29. 29.109 × 106 =
30. 30.1040 × 1018 =
31. 31.6 × 9 =
32. 32.95 × 88 =
33. 33.95 × 89 =
34. 34.969 × 989 =
35. 35.114 × 91 =
36. 36.99 × 98 =
37. 37.8 × 9 =
38. 38.108 × 110 =
39. 39.9 × 6 =
40. 40.12 × 12 =

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