Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 704 · 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. 1.11 × 12 =
2. 2.98 × 99 =
3. 3.91 × 97 =
4. 4.11 × 9 =
5. 5.1028 × 989 =
6. 6.14 × 6 =
7. 7.87 × 95 =
8. 8.988 × 981 =
9. 9.11 × 9 =
10. 10.976 × 988 =
11. 11.984 × 992 =
12. 12.13 × 8 =
13. 13.113 × 102 =
14. 14.110 × 94 =
15. 15.96 × 97 =
16. 16.91 × 88 =
17. 17.98 × 99 =
18. 18.113 × 89 =
19. 19.109 × 107 =
20. 20.102 × 93 =
21. 21.1004 × 1032 =
22. 22.1023 × 983 =
23. 23.113 × 86 =
24. 24.967 × 986 =
25. 25.96 × 98 =
26. 26.97 × 86 =
27. 27.1003 × 1011 =
28. 28.115 × 104 =
29. 29.115 × 95 =
30. 30.13 × 7 =
31. 31.1011 × 1005 =
32. 32.12 × 8 =
33. 33.1018 × 1019 =
34. 34.1026 × 986 =
35. 35.94 × 97 =
36. 36.98 × 97 =
37. 37.107 × 102 =
38. 38.87 × 95 =
39. 39.7 × 9 =
40. 40.112 × 92 =

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