Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 894 · 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. 1.14 × 14 =
2. 2.13 × 11 =
3. 3.109 × 102 =
4. 4.91 × 92 =
5. 5.8 × 6 =
6. 6.111 × 105 =
7. 7.106 × 97 =
8. 8.1028 × 1033 =
9. 9.1037 × 1002 =
10. 10.106 × 107 =
11. 11.1026 × 996 =
12. 12.114 × 110 =
13. 13.11 × 12 =
14. 14.14 × 13 =
15. 15.964 × 972 =
16. 16.96 × 98 =
17. 17.115 × 105 =
18. 18.12 × 6 =
19. 19.93 × 91 =
20. 20.11 × 9 =
21. 21.102 × 99 =
22. 22.9 × 6 =
23. 23.115 × 102 =
24. 24.87 × 91 =
25. 25.1013 × 1028 =
26. 26.94 × 91 =
27. 27.92 × 95 =
28. 28.107 × 102 =
29. 29.14 × 11 =
30. 30.14 × 11 =
31. 31.98 × 97 =
32. 32.109 × 86 =
33. 33.1025 × 1032 =
34. 34.111 × 104 =
35. 35.11 × 7 =
36. 36.99 × 99 =
37. 37.95 × 95 =
38. 38.109 × 98 =
39. 39.9 × 6 =
40. 40.98 × 89 =

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