Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 947 · 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. 1.13 × 13 =
2. 2.102 × 97 =
3. 3.93 × 90 =
4. 4.113 × 93 =
5. 5.982 × 960 =
6. 6.114 × 103 =
7. 7.101 × 111 =
8. 8.8 × 9 =
9. 9.102 × 105 =
10. 10.14 × 14 =
11. 11.11 × 14 =
12. 12.9 × 9 =
13. 13.998 × 979 =
14. 14.96 × 95 =
15. 15.11 × 13 =
16. 16.11 × 14 =
17. 17.93 × 99 =
18. 18.85 × 92 =
19. 19.969 × 985 =
20. 20.109 × 87 =
21. 21.87 × 92 =
22. 22.12 × 8 =
23. 23.112 × 94 =
24. 24.107 × 105 =
25. 25.14 × 13 =
26. 26.8 × 8 =
27. 27.986 × 984 =
28. 28.1023 × 1002 =
29. 29.8 × 9 =
30. 30.85 × 98 =
31. 31.6 × 8 =
32. 32.6 × 9 =
33. 33.86 × 88 =
34. 34.8 × 7 =
35. 35.104 × 104 =
36. 36.990 × 969 =
37. 37.115 × 85 =
38. 38.9 × 7 =
39. 39.1035 × 1016 =
40. 40.9 × 6 =

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