Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 956 · 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. 1.102 × 113 =
2. 2.971 × 984 =
3. 3.101 × 107 =
4. 4.1020 × 1018 =
5. 5.9 × 8 =
6. 6.1034 × 967 =
7. 7.111 × 87 =
8. 8.14 × 12 =
9. 9.1035 × 985 =
10. 10.14 × 14 =
11. 11.14 × 14 =
12. 12.13 × 8 =
13. 13.90 × 94 =
14. 14.971 × 964 =
15. 15.110 × 105 =
16. 16.14 × 11 =
17. 17.88 × 98 =
18. 18.9 × 8 =
19. 19.103 × 92 =
20. 20.8 × 9 =
21. 21.8 × 9 =
22. 22.11 × 9 =
23. 23.109 × 101 =
24. 24.98 × 99 =
25. 25.102 × 113 =
26. 26.13 × 6 =
27. 27.9 × 9 =
28. 28.97 × 94 =
29. 29.966 × 978 =
30. 30.13 × 9 =
31. 31.108 × 101 =
32. 32.12 × 13 =
33. 33.6 × 9 =
34. 34.7 × 9 =
35. 35.92 × 94 =
36. 36.1001 × 987 =
37. 37.96 × 86 =
38. 38.6 × 8 =
39. 39.1021 × 1033 =
40. 40.1001 × 1038 =

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