Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 232 · 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. 1.13 × 13 =
2. 2.8 × 8 =
3. 3.89 × 96 =
4. 4.91 × 99 =
5. 5.11 × 12 =
6. 6.8 × 6 =
7. 7.1035 × 1023 =
8. 8.11 × 13 =
9. 9.1040 × 1035 =
10. 10.93 × 93 =
11. 11.107 × 112 =
12. 12.9 × 7 =
13. 13.1002 × 1009 =
14. 14.104 × 93 =
15. 15.11 × 12 =
16. 16.114 × 101 =
17. 17.1040 × 1023 =
18. 18.105 × 88 =
19. 19.86 × 99 =
20. 20.1004 × 1025 =
21. 21.14 × 7 =
22. 22.110 × 104 =
23. 23.7 × 7 =
24. 24.106 × 85 =
25. 25.104 × 96 =
26. 26.85 × 99 =
27. 27.11 × 12 =
28. 28.11 × 11 =
29. 29.9 × 6 =
30. 30.112 × 85 =
31. 31.97 × 95 =
32. 32.12 × 11 =
33. 33.111 × 105 =
34. 34.974 × 983 =
35. 35.99 × 98 =
36. 36.112 × 107 =
37. 37.7 × 8 =
38. 38.86 × 92 =
39. 39.105 × 114 =
40. 40.96 × 95 =

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