Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 406 · 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. 2.6 × 7 =
3. 3.14 × 12 =
4. 4.14 × 7 =
5. 5.91 × 92 =
6. 6.7 × 9 =
7. 7.1015 × 966 =
8. 8.101 × 96 =
9. 9.12 × 14 =
10. 10.14 × 7 =
11. 11.114 × 106 =
12. 12.107 × 112 =
13. 13.14 × 7 =
14. 14.14 × 11 =
15. 15.92 × 96 =
16. 16.99 × 99 =
17. 17.9 × 8 =
18. 18.96 × 89 =
19. 19.12 × 11 =
20. 20.91 × 85 =
21. 21.1018 × 970 =
22. 22.13 × 14 =
23. 23.115 × 98 =
24. 24.106 × 101 =
25. 25.92 × 85 =
26. 26.106 × 95 =
27. 27.98 × 91 =
28. 28.988 × 971 =
29. 29.112 × 103 =
30. 30.90 × 86 =
31. 31.114 × 86 =
32. 32.1025 × 966 =
33. 33.1015 × 1030 =
34. 34.1023 × 988 =
35. 35.96 × 94 =
36. 36.8 × 9 =
37. 37.14 × 6 =
38. 38.109 × 101 =
39. 39.104 × 96 =
40. 40.112 × 103 =

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