Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 831 · 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. 1.93 × 90 =
2. 2.104 × 93 =
3. 3.7 × 9 =
4. 4.102 × 89 =
5. 5.103 × 105 =
6. 6.1013 × 1026 =
7. 7.102 × 108 =
8. 8.11 × 7 =
9. 9.960 × 977 =
10. 10.1013 × 1036 =
11. 11.111 × 85 =
12. 12.97 × 94 =
13. 13.12 × 8 =
14. 14.91 × 95 =
15. 15.14 × 8 =
16. 16.11 × 14 =
17. 17.967 × 983 =
18. 18.107 × 108 =
19. 19.11 × 13 =
20. 20.92 × 93 =
21. 21.98 × 86 =
22. 22.113 × 89 =
23. 23.962 × 962 =
24. 24.8 × 6 =
25. 25.995 × 994 =
26. 26.90 × 90 =
27. 27.105 × 90 =
28. 28.982 × 996 =
29. 29.9 × 8 =
30. 30.113 × 98 =
31. 31.1017 × 1040 =
32. 32.103 × 110 =
33. 33.101 × 94 =
34. 34.992 × 963 =
35. 35.106 × 111 =
36. 36.91 × 96 =
37. 37.6 × 9 =
38. 38.103 × 88 =
39. 39.104 × 114 =
40. 40.88 × 90 =

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