Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 846 · 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. 1.9 × 7 =
2. 2.8 × 7 =
3. 3.6 × 6 =
4. 4.12 × 12 =
5. 5.8 × 8 =
6. 6.14 × 11 =
7. 7.1001 × 966 =
8. 8.96 × 87 =
9. 9.11 × 14 =
10. 10.101 × 99 =
11. 11.1023 × 985 =
12. 12.112 × 99 =
13. 13.1019 × 961 =
14. 14.109 × 112 =
15. 15.88 × 98 =
16. 16.977 × 975 =
17. 17.6 × 9 =
18. 18.13 × 7 =
19. 19.87 × 90 =
20. 20.7 × 7 =
21. 21.1011 × 1013 =
22. 22.91 × 96 =
23. 23.112 × 113 =
24. 24.113 × 103 =
25. 25.107 × 104 =
26. 26.6 × 7 =
27. 27.96 × 85 =
28. 28.97 × 95 =
29. 29.998 × 988 =
30. 30.999 × 976 =
31. 31.14 × 12 =
32. 32.13 × 13 =
33. 33.86 × 97 =
34. 34.90 × 98 =
35. 35.93 × 85 =
36. 36.1011 × 1008 =
37. 37.111 × 101 =
38. 38.999 × 967 =
39. 39.95 × 89 =
40. 40.86 × 90 =

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