Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 530 · 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. 1.8 × 7 =
2. 2.1018 × 991 =
3. 3.993 × 971 =
4. 4.112 × 103 =
5. 5.106 × 103 =
6. 6.110 × 114 =
7. 7.1022 × 982 =
8. 8.86 × 99 =
9. 9.14 × 8 =
10. 10.96 × 97 =
11. 11.114 × 107 =
12. 12.1026 × 1025 =
13. 13.87 × 89 =
14. 14.110 × 112 =
15. 15.9 × 7 =
16. 16.978 × 961 =
17. 17.11 × 14 =
18. 18.13 × 14 =
19. 19.108 × 96 =
20. 20.6 × 8 =
21. 21.104 × 105 =
22. 22.13 × 6 =
23. 23.104 × 89 =
24. 24.963 × 962 =
25. 25.12 × 13 =
26. 26.112 × 111 =
27. 27.96 × 89 =
28. 28.87 × 95 =
29. 29.14 × 8 =
30. 30.1012 × 991 =
31. 31.965 × 994 =
32. 32.110 × 109 =
33. 33.13 × 14 =
34. 34.101 × 108 =
35. 35.964 × 990 =
36. 36.88 × 96 =
37. 37.104 × 106 =
38. 38.107 × 108 =
39. 39.96 × 91 =
40. 40.89 × 93 =

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