Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 321 · 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. 1.102 × 89 =
2. 2.963 × 988 =
3. 3.9 × 8 =
4. 4.110 × 110 =
5. 5.113 × 91 =
6. 6.9 × 7 =
7. 7.7 × 7 =
8. 8.7 × 7 =
9. 9.989 × 987 =
10. 10.108 × 101 =
11. 11.999 × 973 =
12. 12.87 × 92 =
13. 13.13 × 9 =
14. 14.111 × 102 =
15. 15.107 × 113 =
16. 16.107 × 101 =
17. 17.1035 × 1040 =
18. 18.1019 × 964 =
19. 19.9 × 7 =
20. 20.90 × 86 =
21. 21.98 × 96 =
22. 22.12 × 12 =
23. 23.9 × 8 =
24. 24.1035 × 1007 =
25. 25.1023 × 1009 =
26. 26.6 × 8 =
27. 27.8 × 8 =
28. 28.9 × 7 =
29. 29.98 × 85 =
30. 30.12 × 14 =
31. 31.12 × 8 =
32. 32.94 × 98 =
33. 33.1038 × 1018 =
34. 34.103 × 97 =
35. 35.86 × 92 =
36. 36.109 × 109 =
37. 37.113 × 94 =
38. 38.89 × 98 =
39. 39.12 × 11 =
40. 40.986 × 999 =

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