Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 343 · 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. 1.88 × 86 =
2. 2.86 × 88 =
3. 3.114 × 112 =
4. 4.9 × 7 =
5. 5.9 × 7 =
6. 6.14 × 14 =
7. 7.1001 × 991 =
8. 8.109 × 103 =
9. 9.6 × 7 =
10. 10.998 × 996 =
11. 11.112 × 112 =
12. 12.112 × 112 =
13. 13.104 × 96 =
14. 14.13 × 12 =
15. 15.1029 × 1021 =
16. 16.99 × 97 =
17. 17.102 × 107 =
18. 18.8 × 8 =
19. 19.97 × 96 =
20. 20.980 × 960 =
21. 21.1024 × 996 =
22. 22.94 × 88 =
23. 23.981 × 995 =
24. 24.11 × 6 =
25. 25.6 × 7 =
26. 26.104 × 86 =
27. 27.106 × 93 =
28. 28.94 × 92 =
29. 29.115 × 102 =
30. 30.1025 × 1004 =
31. 31.13 × 7 =
32. 32.102 × 112 =
33. 33.106 × 109 =
34. 34.104 × 98 =
35. 35.91 × 96 =
36. 36.14 × 14 =
37. 37.13 × 12 =
38. 38.993 × 991 =
39. 39.110 × 112 =
40. 40.91 × 97 =

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