Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 133 · 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. 1.115 × 112 =
2. 2.115 × 97 =
3. 3.104 × 114 =
4. 4.9 × 9 =
5. 5.9 × 7 =
6. 6.94 × 94 =
7. 7.1021 × 985 =
8. 8.1014 × 974 =
9. 9.89 × 92 =
10. 10.85 × 89 =
11. 11.101 × 85 =
12. 12.90 × 93 =
13. 13.101 × 88 =
14. 14.1031 × 966 =
15. 15.111 × 102 =
16. 16.95 × 92 =
17. 17.11 × 6 =
18. 18.6 × 9 =
19. 19.1023 × 971 =
20. 20.1011 × 1001 =
21. 21.12 × 8 =
22. 22.97 × 90 =
23. 23.98 × 98 =
24. 24.7 × 7 =
25. 25.88 × 94 =
26. 26.101 × 111 =
27. 27.1015 × 999 =
28. 28.99 × 95 =
29. 29.9 × 7 =
30. 30.999 × 993 =
31. 31.91 × 89 =
32. 32.112 × 111 =
33. 33.977 × 974 =
34. 34.104 × 115 =
35. 35.99 × 97 =
36. 36.103 × 86 =
37. 37.1015 × 986 =
38. 38.11 × 8 =
39. 39.94 × 93 =
40. 40.993 × 980 =

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