Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 879 · 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. 1.7 × 7 =
2. 2.961 × 980 =
3. 3.114 × 109 =
4. 4.90 × 99 =
5. 5.960 × 997 =
6. 6.108 × 86 =
7. 7.1005 × 987 =
8. 8.13 × 8 =
9. 9.112 × 110 =
10. 10.11 × 14 =
11. 11.1039 × 981 =
12. 12.14 × 12 =
13. 13.94 × 87 =
14. 14.113 × 108 =
15. 15.88 × 91 =
16. 16.961 × 960 =
17. 17.97 × 86 =
18. 18.104 × 101 =
19. 19.11 × 9 =
20. 20.6 × 8 =
21. 21.1009 × 1018 =
22. 22.114 × 106 =
23. 23.112 × 107 =
24. 24.1038 × 987 =
25. 25.114 × 91 =
26. 26.8 × 8 =
27. 27.110 × 98 =
28. 28.12 × 8 =
29. 29.91 × 86 =
30. 30.8 × 9 =
31. 31.9 × 9 =
32. 32.97 × 88 =
33. 33.115 × 99 =
34. 34.999 × 971 =
35. 35.97 × 96 =
36. 36.1016 × 1010 =
37. 37.109 × 111 =
38. 38.11 × 8 =
39. 39.109 × 101 =
40. 40.108 × 111 =

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