Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 531 · 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. 1.13 × 7 =
2. 2.104 × 107 =
3. 3.105 × 93 =
4. 4.97 × 97 =
5. 5.97 × 93 =
6. 6.1031 × 998 =
7. 7.12 × 12 =
8. 8.95 × 93 =
9. 9.12 × 14 =
10. 10.101 × 87 =
11. 11.12 × 9 =
12. 12.1002 × 1029 =
13. 13.14 × 14 =
14. 14.97 × 85 =
15. 15.85 × 96 =
16. 16.12 × 13 =
17. 17.12 × 6 =
18. 18.8 × 9 =
19. 19.99 × 93 =
20. 20.971 × 976 =
21. 21.1013 × 981 =
22. 22.981 × 996 =
23. 23.107 × 91 =
24. 24.13 × 12 =
25. 25.98 × 90 =
26. 26.999 × 973 =
27. 27.89 × 92 =
28. 28.1017 × 1016 =
29. 29.89 × 94 =
30. 30.102 × 101 =
31. 31.12 × 12 =
32. 32.1016 × 993 =
33. 33.109 × 98 =
34. 34.8 × 6 =
35. 35.7 × 7 =
36. 36.6 × 9 =
37. 37.96 × 88 =
38. 38.98 × 87 =
39. 39.13 × 6 =
40. 40.109 × 113 =

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