Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 786 · 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. 1.988 × 982 =
2. 2.85 × 98 =
3. 3.113 × 96 =
4. 4.14 × 14 =
5. 5.11 × 9 =
6. 6.14 × 9 =
7. 7.113 × 89 =
8. 8.104 × 107 =
9. 9.96 × 96 =
10. 10.94 × 96 =
11. 11.967 × 982 =
12. 12.103 × 99 =
13. 13.997 × 986 =
14. 14.97 × 92 =
15. 15.8 × 6 =
16. 16.88 × 89 =
17. 17.12 × 13 =
18. 18.1029 × 968 =
19. 19.93 × 91 =
20. 20.87 × 87 =
21. 21.9 × 7 =
22. 22.992 × 981 =
23. 23.7 × 8 =
24. 24.98 × 97 =
25. 25.114 × 96 =
26. 26.106 × 98 =
27. 27.9 × 9 =
28. 28.94 × 87 =
29. 29.114 × 87 =
30. 30.11 × 11 =
31. 31.102 × 105 =
32. 32.14 × 11 =
33. 33.110 × 107 =
34. 34.109 × 97 =
35. 35.967 × 970 =
36. 36.112 × 104 =
37. 37.9 × 6 =
38. 38.990 × 999 =
39. 39.1018 × 1016 =
40. 40.103 × 88 =

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