Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 400 · 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. 1.11 × 12 =
2. 2.978 × 988 =
3. 3.9 × 7 =
4. 4.88 × 88 =
5. 5.97 × 97 =
6. 6.1030 × 996 =
7. 7.90 × 97 =
8. 8.11 × 8 =
9. 9.99 × 95 =
10. 10.6 × 6 =
11. 11.111 × 103 =
12. 12.104 × 108 =
13. 13.87 × 85 =
14. 14.9 × 9 =
15. 15.103 × 107 =
16. 16.90 × 92 =
17. 17.7 × 6 =
18. 18.95 × 90 =
19. 19.14 × 9 =
20. 20.9 × 8 =
21. 21.114 × 90 =
22. 22.105 × 108 =
23. 23.101 × 87 =
24. 24.102 × 97 =
25. 25.86 × 97 =
26. 26.105 × 107 =
27. 27.1003 × 991 =
28. 28.104 × 92 =
29. 29.87 × 85 =
30. 30.9 × 9 =
31. 31.11 × 14 =
32. 32.1030 × 999 =
33. 33.13 × 9 =
34. 34.982 × 979 =
35. 35.108 × 109 =
36. 36.6 × 6 =
37. 37.6 × 6 =
38. 38.91 × 97 =
39. 39.1019 × 1008 =
40. 40.96 × 93 =

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