Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 963 · 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. 1.105 × 112 =
2. 2.14 × 9 =
3. 3.13 × 11 =
4. 4.6 × 8 =
5. 5.106 × 97 =
6. 6.114 × 103 =
7. 7.106 × 98 =
8. 8.1023 × 1032 =
9. 9.11 × 7 =
10. 10.1040 × 1006 =
11. 11.1018 × 1021 =
12. 12.111 × 90 =
13. 13.1001 × 964 =
14. 14.6 × 7 =
15. 15.108 × 87 =
16. 16.113 × 94 =
17. 17.88 × 85 =
18. 18.96 × 87 =
19. 19.984 × 991 =
20. 20.108 × 101 =
21. 21.91 × 99 =
22. 22.98 × 86 =
23. 23.1004 × 1038 =
24. 24.1033 × 1031 =
25. 25.112 × 97 =
26. 26.8 × 7 =
27. 27.105 × 106 =
28. 28.12 × 9 =
29. 29.7 × 6 =
30. 30.8 × 8 =
31. 31.109 × 113 =
32. 32.98 × 97 =
33. 33.11 × 9 =
34. 34.113 × 107 =
35. 35.102 × 94 =
36. 36.1036 × 984 =
37. 37.960 × 983 =
38. 38.1010 × 1011 =
39. 39.111 × 102 =
40. 40.13 × 14 =

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