Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 538 · 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. 1.87 × 87 =
2. 2.1029 × 1003 =
3. 3.14 × 13 =
4. 4.92 × 87 =
5. 5.6 × 9 =
6. 6.14 × 11 =
7. 7.6 × 6 =
8. 8.13 × 7 =
9. 9.103 × 104 =
10. 10.97 × 99 =
11. 11.6 × 6 =
12. 12.13 × 8 =
13. 13.92 × 99 =
14. 14.6 × 9 =
15. 15.6 × 9 =
16. 16.106 × 114 =
17. 17.95 × 98 =
18. 18.98 × 96 =
19. 19.94 × 97 =
20. 20.91 × 88 =
21. 21.11 × 7 =
22. 22.1010 × 1027 =
23. 23.90 × 92 =
24. 24.1001 × 1026 =
25. 25.12 × 8 =
26. 26.95 × 91 =
27. 27.1040 × 1030 =
28. 28.14 × 12 =
29. 29.14 × 9 =
30. 30.988 × 966 =
31. 31.103 × 102 =
32. 32.107 × 99 =
33. 33.8 × 9 =
34. 34.103 × 104 =
35. 35.88 × 88 =
36. 36.1040 × 1030 =
37. 37.11 × 11 =
38. 38.94 × 90 =
39. 39.110 × 112 =
40. 40.11 × 7 =

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