Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 691 · 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. 1.107 × 113 =
2. 2.112 × 87 =
3. 3.6 × 8 =
4. 4.93 × 85 =
5. 5.12 × 9 =
6. 6.102 × 111 =
7. 7.98 × 94 =
8. 8.102 × 112 =
9. 9.102 × 85 =
10. 10.111 × 108 =
11. 11.13 × 12 =
12. 12.7 × 9 =
13. 13.14 × 13 =
14. 14.104 × 88 =
15. 15.108 × 95 =
16. 16.13 × 12 =
17. 17.13 × 12 =
18. 18.94 × 91 =
19. 19.107 × 110 =
20. 20.1010 × 1011 =
21. 21.6 × 8 =
22. 22.962 × 964 =
23. 23.7 × 9 =
24. 24.115 × 91 =
25. 25.112 × 95 =
26. 26.111 × 101 =
27. 27.9 × 6 =
28. 28.12 × 13 =
29. 29.9 × 9 =
30. 30.96 × 98 =
31. 31.9 × 9 =
32. 32.101 × 108 =
33. 33.91 × 87 =
34. 34.967 × 970 =
35. 35.110 × 104 =
36. 36.114 × 99 =
37. 37.1033 × 1036 =
38. 38.12 × 14 =
39. 39.90 × 85 =
40. 40.93 × 87 =

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