Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 341 · 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. 1.12 × 8 =
2. 2.974 × 998 =
3. 3.113 × 112 =
4. 4.108 × 105 =
5. 5.13 × 6 =
6. 6.1017 × 1019 =
7. 7.971 × 992 =
8. 8.85 × 98 =
9. 9.93 × 88 =
10. 10.14 × 9 =
11. 11.1034 × 996 =
12. 12.14 × 11 =
13. 13.978 × 963 =
14. 14.99 × 86 =
15. 15.109 × 94 =
16. 16.1027 × 966 =
17. 17.14 × 12 =
18. 18.108 × 91 =
19. 19.991 × 994 =
20. 20.1007 × 970 =
21. 21.1002 × 1010 =
22. 22.14 × 11 =
23. 23.986 × 982 =
24. 24.9 × 7 =
25. 25.13 × 9 =
26. 26.110 × 112 =
27. 27.101 × 93 =
28. 28.8 × 7 =
29. 29.94 × 99 =
30. 30.103 × 94 =
31. 31.105 × 103 =
32. 32.12 × 11 =
33. 33.13 × 14 =
34. 34.12 × 7 =
35. 35.89 × 98 =
36. 36.11 × 6 =
37. 37.1006 × 1013 =
38. 38.12 × 13 =
39. 39.1034 × 977 =
40. 40.987 × 965 =

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