Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 359 · 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. 1.98 × 89 =
2. 2.95 × 98 =
3. 3.94 × 96 =
4. 4.971 × 990 =
5. 5.91 × 87 =
6. 6.993 × 965 =
7. 7.92 × 87 =
8. 8.9 × 9 =
9. 9.8 × 6 =
10. 10.11 × 7 =
11. 11.12 × 11 =
12. 12.8 × 6 =
13. 13.9 × 8 =
14. 14.108 × 88 =
15. 15.1015 × 998 =
16. 16.14 × 13 =
17. 17.110 × 95 =
18. 18.9 × 8 =
19. 19.113 × 96 =
20. 20.11 × 13 =
21. 21.8 × 6 =
22. 22.111 × 104 =
23. 23.94 × 90 =
24. 24.1008 × 1040 =
25. 25.966 × 963 =
26. 26.104 × 102 =
27. 27.94 × 94 =
28. 28.103 × 88 =
29. 29.9 × 7 =
30. 30.973 × 986 =
31. 31.95 × 99 =
32. 32.962 × 973 =
33. 33.6 × 8 =
34. 34.87 × 86 =
35. 35.9 × 8 =
36. 36.111 × 114 =
37. 37.92 × 92 =
38. 38.107 × 87 =
39. 39.7 × 9 =
40. 40.1014 × 1014 =

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