Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 240 · 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. 1.90 × 97 =
2. 2.86 × 88 =
3. 3.104 × 87 =
4. 4.108 × 115 =
5. 5.8 × 6 =
6. 6.972 × 996 =
7. 7.115 × 94 =
8. 8.8 × 8 =
9. 9.12 × 6 =
10. 10.12 × 6 =
11. 11.96 × 95 =
12. 12.12 × 8 =
13. 13.13 × 12 =
14. 14.114 × 102 =
15. 15.1029 × 1003 =
16. 16.1028 × 1010 =
17. 17.112 × 95 =
18. 18.112 × 92 =
19. 19.87 × 89 =
20. 20.88 × 94 =
21. 21.12 × 11 =
22. 22.106 × 103 =
23. 23.95 × 96 =
24. 24.90 × 89 =
25. 25.972 × 999 =
26. 26.104 × 87 =
27. 27.99 × 88 =
28. 28.105 × 102 =
29. 29.13 × 9 =
30. 30.1017 × 987 =
31. 31.88 × 85 =
32. 32.9 × 7 =
33. 33.97 × 89 =
34. 34.9 × 7 =
35. 35.12 × 11 =
36. 36.12 × 9 =
37. 37.92 × 85 =
38. 38.11 × 7 =
39. 39.114 × 93 =
40. 40.105 × 90 =

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