Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 276 · 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. 1.973 × 997 =
2. 2.1032 × 1020 =
3. 3.105 × 106 =
4. 4.12 × 12 =
5. 5.7 × 8 =
6. 6.998 × 980 =
7. 7.13 × 13 =
8. 8.6 × 6 =
9. 9.111 × 89 =
10. 10.113 × 87 =
11. 11.99 × 99 =
12. 12.1030 × 988 =
13. 13.114 × 88 =
14. 14.97 × 93 =
15. 15.11 × 13 =
16. 16.993 × 990 =
17. 17.85 × 95 =
18. 18.6 × 6 =
19. 19.8 × 7 =
20. 20.97 × 97 =
21. 21.110 × 108 =
22. 22.14 × 13 =
23. 23.13 × 11 =
24. 24.6 × 9 =
25. 25.6 × 8 =
26. 26.99 × 88 =
27. 27.89 × 90 =
28. 28.113 × 108 =
29. 29.114 × 86 =
30. 30.102 × 114 =
31. 31.91 × 89 =
32. 32.7 × 8 =
33. 33.1007 × 1033 =
34. 34.1014 × 985 =
35. 35.961 × 961 =
36. 36.11 × 11 =
37. 37.8 × 9 =
38. 38.87 × 91 =
39. 39.107 × 93 =
40. 40.115 × 102 =

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