Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 219 · 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. 1.113 × 110 =
2. 2.113 × 103 =
3. 3.6 × 7 =
4. 4.93 × 90 =
5. 5.87 × 96 =
6. 6.88 × 92 =
7. 7.103 × 86 =
8. 8.88 × 87 =
9. 9.1039 × 967 =
10. 10.9 × 7 =
11. 11.108 × 99 =
12. 12.102 × 89 =
13. 13.7 × 7 =
14. 14.11 × 13 =
15. 15.12 × 14 =
16. 16.114 × 88 =
17. 17.1035 × 988 =
18. 18.112 × 105 =
19. 19.103 × 99 =
20. 20.99 × 91 =
21. 21.90 × 96 =
22. 22.980 × 961 =
23. 23.14 × 14 =
24. 24.108 × 108 =
25. 25.1007 × 1025 =
26. 26.6 × 6 =
27. 27.11 × 11 =
28. 28.97 × 87 =
29. 29.9 × 7 =
30. 30.9 × 7 =
31. 31.114 × 99 =
32. 32.14 × 11 =
33. 33.108 × 93 =
34. 34.1018 × 1005 =
35. 35.88 × 97 =
36. 36.14 × 9 =
37. 37.12 × 13 =
38. 38.98 × 98 =
39. 39.92 × 95 =
40. 40.1019 × 1039 =

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