Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 815 · 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. 1.85 × 88 =
2. 2.11 × 11 =
3. 3.967 × 988 =
4. 4.102 × 87 =
5. 5.112 × 103 =
6. 6.87 × 99 =
7. 7.13 × 11 =
8. 8.109 × 103 =
9. 9.12 × 8 =
10. 10.97 × 92 =
11. 11.88 × 98 =
12. 12.111 × 102 =
13. 13.92 × 97 =
14. 14.8 × 8 =
15. 15.106 × 114 =
16. 16.12 × 11 =
17. 17.102 × 110 =
18. 18.112 × 111 =
19. 19.7 × 6 =
20. 20.115 × 96 =
21. 21.106 × 104 =
22. 22.107 × 104 =
23. 23.91 × 89 =
24. 24.6 × 6 =
25. 25.13 × 14 =
26. 26.12 × 12 =
27. 27.106 × 87 =
28. 28.11 × 14 =
29. 29.14 × 9 =
30. 30.94 × 86 =
31. 31.987 × 988 =
32. 32.11 × 9 =
33. 33.1031 × 1004 =
34. 34.9 × 8 =
35. 35.103 × 87 =
36. 36.114 × 108 =
37. 37.7 × 6 =
38. 38.85 × 98 =
39. 39.94 × 95 =
40. 40.11 × 12 =

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