Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 306 · 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. 1.1036 × 1028 =
2. 2.964 × 988 =
3. 3.9 × 8 =
4. 4.111 × 101 =
5. 5.86 × 93 =
6. 6.109 × 103 =
7. 7.110 × 102 =
8. 8.14 × 6 =
9. 9.983 × 978 =
10. 10.106 × 91 =
11. 11.87 × 93 =
12. 12.995 × 988 =
13. 13.85 × 92 =
14. 14.991 × 960 =
15. 15.972 × 965 =
16. 16.106 × 86 =
17. 17.1010 × 1025 =
18. 18.8 × 7 =
19. 19.103 × 111 =
20. 20.87 × 97 =
21. 21.98 × 91 =
22. 22.112 × 97 =
23. 23.85 × 87 =
24. 24.103 × 90 =
25. 25.102 × 107 =
26. 26.88 × 92 =
27. 27.87 × 94 =
28. 28.1018 × 961 =
29. 29.13 × 6 =
30. 30.85 × 97 =
31. 31.101 × 111 =
32. 32.115 × 88 =
33. 33.11 × 6 =
34. 34.991 × 980 =
35. 35.111 × 110 =
36. 36.6 × 7 =
37. 37.103 × 107 =
38. 38.108 × 88 =
39. 39.9 × 9 =
40. 40.1002 × 963 =

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