Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 664 · 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 × 86 =
2. 2.109 × 86 =
3. 3.106 × 111 =
4. 4.9 × 8 =
5. 5.115 × 91 =
6. 6.964 × 962 =
7. 7.94 × 94 =
8. 8.9 × 6 =
9. 9.11 × 8 =
10. 10.91 × 89 =
11. 11.106 × 108 =
12. 12.14 × 6 =
13. 13.8 × 6 =
14. 14.106 × 110 =
15. 15.11 × 8 =
16. 16.86 × 90 =
17. 17.9 × 7 =
18. 18.108 × 108 =
19. 19.114 × 102 =
20. 20.114 × 89 =
21. 21.986 × 969 =
22. 22.112 × 111 =
23. 23.11 × 14 =
24. 24.111 × 90 =
25. 25.101 × 112 =
26. 26.11 × 9 =
27. 27.1025 × 1033 =
28. 28.7 × 8 =
29. 29.962 × 966 =
30. 30.1004 × 983 =
31. 31.106 × 111 =
32. 32.1020 × 971 =
33. 33.1016 × 1004 =
34. 34.96 × 94 =
35. 35.13 × 11 =
36. 36.1011 × 997 =
37. 37.88 × 99 =
38. 38.968 × 987 =
39. 39.89 × 88 =
40. 40.978 × 979 =

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