Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 278 · 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. 1.97 × 85 =
2. 2.976 × 965 =
3. 3.7 × 8 =
4. 4.107 × 99 =
5. 5.9 × 7 =
6. 6.98 × 99 =
7. 7.99 × 96 =
8. 8.6 × 8 =
9. 9.103 × 98 =
10. 10.1021 × 1012 =
11. 11.1014 × 975 =
12. 12.12 × 13 =
13. 13.7 × 6 =
14. 14.90 × 97 =
15. 15.87 × 97 =
16. 16.115 × 99 =
17. 17.114 × 102 =
18. 18.963 × 998 =
19. 19.109 × 101 =
20. 20.971 × 992 =
21. 21.14 × 11 =
22. 22.12 × 13 =
23. 23.85 × 92 =
24. 24.999 × 964 =
25. 25.7 × 9 =
26. 26.7 × 9 =
27. 27.8 × 7 =
28. 28.103 × 98 =
29. 29.96 × 92 =
30. 30.9 × 7 =
31. 31.9 × 6 =
32. 32.101 × 85 =
33. 33.990 × 988 =
34. 34.106 × 88 =
35. 35.90 × 86 =
36. 36.12 × 12 =
37. 37.997 × 983 =
38. 38.99 × 90 =
39. 39.112 × 90 =
40. 40.7 × 6 =

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