Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 271 · 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. 1.8 × 8 =
2. 2.12 × 8 =
3. 3.8 × 6 =
4. 4.13 × 12 =
5. 5.101 × 103 =
6. 6.95 × 91 =
7. 7.114 × 104 =
8. 8.11 × 14 =
9. 9.1023 × 1028 =
10. 10.114 × 112 =
11. 11.99 × 95 =
12. 12.7 × 7 =
13. 13.112 × 98 =
14. 14.115 × 107 =
15. 15.114 × 103 =
16. 16.1013 × 1035 =
17. 17.12 × 14 =
18. 18.98 × 94 =
19. 19.11 × 8 =
20. 20.89 × 86 =
21. 21.88 × 94 =
22. 22.106 × 98 =
23. 23.99 × 99 =
24. 24.92 × 90 =
25. 25.93 × 97 =
26. 26.92 × 93 =
27. 27.13 × 11 =
28. 28.11 × 11 =
29. 29.115 × 111 =
30. 30.1003 × 1008 =
31. 31.98 × 85 =
32. 32.85 × 87 =
33. 33.6 × 8 =
34. 34.996 × 990 =
35. 35.12 × 8 =
36. 36.99 × 90 =
37. 37.1031 × 986 =
38. 38.9 × 8 =
39. 39.989 × 971 =
40. 40.102 × 95 =

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