Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 320 · 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. 1.87 × 89 =
2. 2.11 × 9 =
3. 3.6 × 8 =
4. 4.103 × 115 =
5. 5.969 × 975 =
6. 6.14 × 9 =
7. 7.91 × 93 =
8. 8.104 × 115 =
9. 9.88 × 86 =
10. 10.1028 × 989 =
11. 11.114 × 104 =
12. 12.104 × 112 =
13. 13.89 × 98 =
14. 14.1010 × 1022 =
15. 15.115 × 112 =
16. 16.102 × 101 =
17. 17.8 × 6 =
18. 18.9 × 6 =
19. 19.101 × 107 =
20. 20.1007 × 1014 =
21. 21.101 × 102 =
22. 22.1015 × 1026 =
23. 23.99 × 95 =
24. 24.965 × 982 =
25. 25.98 × 85 =
26. 26.1031 × 1027 =
27. 27.6 × 9 =
28. 28.14 × 11 =
29. 29.102 × 87 =
30. 30.110 × 102 =
31. 31.109 × 94 =
32. 32.111 × 85 =
33. 33.961 × 974 =
34. 34.90 × 99 =
35. 35.1010 × 1037 =
36. 36.1039 × 1032 =
37. 37.11 × 8 =
38. 38.95 × 90 =
39. 39.93 × 99 =
40. 40.8 × 9 =

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