Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 56 · 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. 1.12 × 13 =
2. 2.106 × 89 =
3. 3.106 × 106 =
4. 4.114 × 93 =
5. 5.985 × 971 =
6. 6.95 × 90 =
7. 7.99 × 96 =
8. 8.1035 × 1020 =
9. 9.6 × 8 =
10. 10.14 × 11 =
11. 11.99 × 95 =
12. 12.101 × 95 =
13. 13.105 × 101 =
14. 14.11 × 14 =
15. 15.87 × 89 =
16. 16.88 × 89 =
17. 17.109 × 108 =
18. 18.102 × 103 =
19. 19.90 × 97 =
20. 20.12 × 13 =
21. 21.112 × 91 =
22. 22.114 × 108 =
23. 23.101 × 97 =
24. 24.12 × 13 =
25. 25.6 × 9 =
26. 26.102 × 110 =
27. 27.97 × 93 =
28. 28.1012 × 1026 =
29. 29.113 × 88 =
30. 30.9 × 9 =
31. 31.9 × 7 =
32. 32.115 × 104 =
33. 33.88 × 96 =
34. 34.88 × 89 =
35. 35.981 × 996 =
36. 36.93 × 98 =
37. 37.94 × 96 =
38. 38.988 × 979 =
39. 39.7 × 7 =
40. 40.9 × 6 =

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