Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 106 · 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. 1.12 × 12 =
2. 2.9 × 9 =
3. 3.90 × 99 =
4. 4.87 × 89 =
5. 5.85 × 92 =
6. 6.9 × 9 =
7. 7.11 × 9 =
8. 8.986 × 971 =
9. 9.12 × 7 =
10. 10.1021 × 1010 =
11. 11.13 × 7 =
12. 12.88 × 99 =
13. 13.107 × 108 =
14. 14.103 × 102 =
15. 15.1013 × 1019 =
16. 16.99 × 87 =
17. 17.103 × 111 =
18. 18.7 × 6 =
19. 19.102 × 94 =
20. 20.85 × 88 =
21. 21.103 × 115 =
22. 22.88 × 93 =
23. 23.92 × 96 =
24. 24.1023 × 1019 =
25. 25.99 × 95 =
26. 26.114 × 111 =
27. 27.976 × 989 =
28. 28.99 × 92 =
29. 29.11 × 13 =
30. 30.107 × 103 =
31. 31.99 × 89 =
32. 32.997 × 980 =
33. 33.92 × 86 =
34. 34.14 × 9 =
35. 35.1026 × 968 =
36. 36.114 × 111 =
37. 37.9 × 8 =
38. 38.96 × 97 =
39. 39.104 × 98 =
40. 40.8 × 9 =

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