Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 809 · 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. 1.88 × 90 =
2. 2.105 × 92 =
3. 3.107 × 88 =
4. 4.107 × 103 =
5. 5.13 × 9 =
6. 6.7 × 6 =
7. 7.102 × 110 =
8. 8.1030 × 968 =
9. 9.86 × 88 =
10. 10.101 × 94 =
11. 11.89 × 87 =
12. 12.109 × 93 =
13. 13.6 × 7 =
14. 14.91 × 97 =
15. 15.11 × 12 =
16. 16.1030 × 996 =
17. 17.9 × 7 =
18. 18.1024 × 980 =
19. 19.88 × 97 =
20. 20.968 × 971 =
21. 21.8 × 6 =
22. 22.89 × 94 =
23. 23.106 × 104 =
24. 24.103 × 92 =
25. 25.92 × 97 =
26. 26.993 × 962 =
27. 27.8 × 9 =
28. 28.13 × 11 =
29. 29.12 × 9 =
30. 30.1014 × 967 =
31. 31.104 × 102 =
32. 32.90 × 97 =
33. 33.12 × 13 =
34. 34.13 × 13 =
35. 35.114 × 113 =
36. 36.11 × 8 =
37. 37.97 × 95 =
38. 38.13 × 14 =
39. 39.7 × 9 =
40. 40.105 × 111 =

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