Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 555 · 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 × 9 =
2. 2.115 × 115 =
3. 3.85 × 99 =
4. 4.1033 × 980 =
5. 5.1030 × 1038 =
6. 6.6 × 6 =
7. 7.1007 × 1031 =
8. 8.93 × 95 =
9. 9.12 × 6 =
10. 10.99 × 86 =
11. 11.8 × 9 =
12. 12.107 × 85 =
13. 13.110 × 113 =
14. 14.111 × 97 =
15. 15.1019 × 1016 =
16. 16.87 × 99 =
17. 17.1036 × 1023 =
18. 18.11 × 13 =
19. 19.1014 × 963 =
20. 20.111 × 89 =
21. 21.6 × 7 =
22. 22.1015 × 992 =
23. 23.13 × 8 =
24. 24.106 × 87 =
25. 25.967 × 988 =
26. 26.111 × 112 =
27. 27.8 × 7 =
28. 28.105 × 110 =
29. 29.101 × 98 =
30. 30.102 × 96 =
31. 31.994 × 995 =
32. 32.88 × 94 =
33. 33.969 × 962 =
34. 34.106 × 102 =
35. 35.104 × 107 =
36. 36.99 × 88 =
37. 37.1026 × 1030 =
38. 38.114 × 105 =
39. 39.108 × 94 =
40. 40.968 × 997 =

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