Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 80 · 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. 1.961 × 990 =
2. 2.106 × 110 =
3. 3.13 × 13 =
4. 4.14 × 12 =
5. 5.103 × 101 =
6. 6.11 × 8 =
7. 7.11 × 6 =
8. 8.93 × 99 =
9. 9.1017 × 1003 =
10. 10.98 × 86 =
11. 11.13 × 6 =
12. 12.92 × 85 =
13. 13.95 × 98 =
14. 14.88 × 88 =
15. 15.13 × 14 =
16. 16.113 × 106 =
17. 17.91 × 91 =
18. 18.104 × 85 =
19. 19.1028 × 1001 =
20. 20.112 × 94 =
21. 21.13 × 14 =
22. 22.9 × 6 =
23. 23.12 × 12 =
24. 24.14 × 8 =
25. 25.11 × 12 =
26. 26.112 × 115 =
27. 27.11 × 14 =
28. 28.11 × 11 =
29. 29.91 × 97 =
30. 30.13 × 13 =
31. 31.11 × 12 =
32. 32.1014 × 968 =
33. 33.92 × 97 =
34. 34.13 × 6 =
35. 35.14 × 13 =
36. 36.93 × 93 =
37. 37.92 × 90 =
38. 38.110 × 93 =
39. 39.14 × 13 =
40. 40.1011 × 999 =

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