Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 918 · 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 × 12 =
2. 2.12 × 13 =
3. 3.98 × 99 =
4. 4.89 × 85 =
5. 5.1017 × 976 =
6. 6.91 × 88 =
7. 7.13 × 9 =
8. 8.85 × 97 =
9. 9.93 × 95 =
10. 10.111 × 98 =
11. 11.92 × 99 =
12. 12.112 × 92 =
13. 13.14 × 11 =
14. 14.97 × 94 =
15. 15.6 × 9 =
16. 16.14 × 12 =
17. 17.998 × 985 =
18. 18.7 × 7 =
19. 19.6 × 9 =
20. 20.961 × 998 =
21. 21.13 × 13 =
22. 22.6 × 7 =
23. 23.110 × 105 =
24. 24.9 × 6 =
25. 25.103 × 105 =
26. 26.113 × 93 =
27. 27.999 × 996 =
28. 28.6 × 7 =
29. 29.95 × 97 =
30. 30.90 × 86 =
31. 31.98 × 85 =
32. 32.1007 × 1028 =
33. 33.1004 × 994 =
34. 34.99 × 98 =
35. 35.93 × 92 =
36. 36.88 × 97 =
37. 37.94 × 97 =
38. 38.86 × 87 =
39. 39.1024 × 1026 =
40. 40.113 × 104 =

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