Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 988 · 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 × 9 =
2. 2.102 × 99 =
3. 3.968 × 962 =
4. 4.97 × 85 =
5. 5.85 × 96 =
6. 6.12 × 14 =
7. 7.88 × 86 =
8. 8.85 × 85 =
9. 9.6 × 8 =
10. 10.89 × 87 =
11. 11.12 × 14 =
12. 12.963 × 977 =
13. 13.96 × 89 =
14. 14.96 × 93 =
15. 15.1004 × 988 =
16. 16.995 × 996 =
17. 17.98 × 98 =
18. 18.11 × 6 =
19. 19.11 × 7 =
20. 20.90 × 87 =
21. 21.8 × 9 =
22. 22.12 × 11 =
23. 23.113 × 109 =
24. 24.11 × 11 =
25. 25.110 × 103 =
26. 26.12 × 11 =
27. 27.1021 × 1027 =
28. 28.12 × 14 =
29. 29.114 × 104 =
30. 30.982 × 961 =
31. 31.1010 × 962 =
32. 32.111 × 101 =
33. 33.91 × 92 =
34. 34.976 × 991 =
35. 35.114 × 101 =
36. 36.111 × 106 =
37. 37.109 × 109 =
38. 38.99 × 90 =
39. 39.98 × 94 =
40. 40.99 × 89 =

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