Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 924 · 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. 1.9 × 8 =
2. 2.11 × 11 =
3. 3.8 × 7 =
4. 4.13 × 9 =
5. 5.14 × 8 =
6. 6.960 × 982 =
7. 7.93 × 86 =
8. 8.1016 × 1011 =
9. 9.992 × 964 =
10. 10.114 × 90 =
11. 11.13 × 14 =
12. 12.11 × 11 =
13. 13.99 × 90 =
14. 14.87 × 94 =
15. 15.12 × 12 =
16. 16.1010 × 992 =
17. 17.103 × 104 =
18. 18.89 × 91 =
19. 19.985 × 967 =
20. 20.95 × 97 =
21. 21.7 × 8 =
22. 22.1040 × 1007 =
23. 23.94 × 99 =
24. 24.102 × 90 =
25. 25.111 × 90 =
26. 26.1037 × 987 =
27. 27.1010 × 1012 =
28. 28.99 × 93 =
29. 29.97 × 92 =
30. 30.991 × 970 =
31. 31.107 × 93 =
32. 32.108 × 104 =
33. 33.9 × 7 =
34. 34.86 × 89 =
35. 35.88 × 94 =
36. 36.103 × 103 =
37. 37.96 × 99 =
38. 38.86 × 95 =
39. 39.93 × 97 =
40. 40.976 × 993 =

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