Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 921 · 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 × 99 =
2. 2.89 × 99 =
3. 3.107 × 108 =
4. 4.103 × 111 =
5. 5.14 × 9 =
6. 6.978 × 964 =
7. 7.13 × 7 =
8. 8.113 × 96 =
9. 9.1020 × 1025 =
10. 10.962 × 990 =
11. 11.1012 × 988 =
12. 12.13 × 9 =
13. 13.115 × 96 =
14. 14.11 × 11 =
15. 15.1015 × 1024 =
16. 16.101 × 112 =
17. 17.91 × 88 =
18. 18.9 × 9 =
19. 19.103 × 104 =
20. 20.89 × 95 =
21. 21.13 × 9 =
22. 22.11 × 13 =
23. 23.14 × 13 =
24. 24.85 × 99 =
25. 25.89 × 90 =
26. 26.115 × 91 =
27. 27.112 × 109 =
28. 28.7 × 6 =
29. 29.92 × 98 =
30. 30.104 × 107 =
31. 31.113 × 107 =
32. 32.14 × 14 =
33. 33.95 × 85 =
34. 34.965 × 983 =
35. 35.112 × 110 =
36. 36.102 × 101 =
37. 37.1023 × 1005 =
38. 38.101 × 88 =
39. 39.13 × 9 =
40. 40.110 × 87 =

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