Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 403 · 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. 1.1019 × 983 =
2. 2.90 × 91 =
3. 3.12 × 9 =
4. 4.12 × 8 =
5. 5.93 × 97 =
6. 6.105 × 105 =
7. 7.13 × 8 =
8. 8.99 × 88 =
9. 9.7 × 7 =
10. 10.981 × 971 =
11. 11.12 × 11 =
12. 12.11 × 8 =
13. 13.6 × 9 =
14. 14.11 × 7 =
15. 15.114 × 99 =
16. 16.90 × 90 =
17. 17.88 × 89 =
18. 18.104 × 112 =
19. 19.14 × 14 =
20. 20.1038 × 1020 =
21. 21.11 × 9 =
22. 22.960 × 976 =
23. 23.93 × 92 =
24. 24.13 × 13 =
25. 25.1034 × 997 =
26. 26.989 × 961 =
27. 27.111 × 102 =
28. 28.12 × 6 =
29. 29.12 × 14 =
30. 30.7 × 6 =
31. 31.103 × 101 =
32. 32.88 × 88 =
33. 33.94 × 88 =
34. 34.994 × 973 =
35. 35.105 × 91 =
36. 36.98 × 90 =
37. 37.114 × 107 =
38. 38.8 × 7 =
39. 39.985 × 969 =
40. 40.106 × 92 =

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