Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 77 · 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. 1.8 × 9 =
2. 2.999 × 960 =
3. 3.86 × 97 =
4. 4.1006 × 1024 =
5. 5.97 × 93 =
6. 6.99 × 99 =
7. 7.85 × 85 =
8. 8.14 × 12 =
9. 9.98 × 88 =
10. 10.14 × 11 =
11. 11.106 × 90 =
12. 12.88 × 98 =
13. 13.11 × 6 =
14. 14.6 × 8 =
15. 15.86 × 94 =
16. 16.102 × 114 =
17. 17.112 × 101 =
18. 18.96 × 95 =
19. 19.99 × 99 =
20. 20.98 × 92 =
21. 21.8 × 7 =
22. 22.12 × 12 =
23. 23.85 × 93 =
24. 24.13 × 11 =
25. 25.88 × 91 =
26. 26.1036 × 995 =
27. 27.986 × 988 =
28. 28.103 × 108 =
29. 29.1022 × 1006 =
30. 30.98 × 87 =
31. 31.11 × 9 =
32. 32.92 × 87 =
33. 33.95 × 98 =
34. 34.99 × 87 =
35. 35.98 × 97 =
36. 36.106 × 86 =
37. 37.105 × 96 =
38. 38.97 × 97 =
39. 39.964 × 961 =
40. 40.108 × 101 =

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