Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 32 · 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. 1.1006 × 993 =
2. 2.99 × 87 =
3. 3.976 × 988 =
4. 4.104 × 90 =
5. 5.88 × 96 =
6. 6.1012 × 1024 =
7. 7.976 × 998 =
8. 8.8 × 8 =
9. 9.8 × 8 =
10. 10.1022 × 1010 =
11. 11.13 × 7 =
12. 12.1038 × 972 =
13. 13.103 × 98 =
14. 14.12 × 11 =
15. 15.88 × 91 =
16. 16.967 × 972 =
17. 17.113 × 89 =
18. 18.8 × 8 =
19. 19.1036 × 967 =
20. 20.999 × 980 =
21. 21.113 × 91 =
22. 22.14 × 11 =
23. 23.95 × 87 =
24. 24.12 × 9 =
25. 25.14 × 8 =
26. 26.109 × 107 =
27. 27.88 × 98 =
28. 28.9 × 8 =
29. 29.992 × 979 =
30. 30.7 × 6 =
31. 31.103 × 103 =
32. 32.973 × 988 =
33. 33.9 × 6 =
34. 34.1012 × 1010 =
35. 35.13 × 14 =
36. 36.8 × 8 =
37. 37.986 × 977 =
38. 38.13 × 12 =
39. 39.102 × 94 =
40. 40.8 × 9 =

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