Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 336 · 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. 1.115 × 111 =
2. 2.99 × 93 =
3. 3.106 × 94 =
4. 4.106 × 115 =
5. 5.115 × 104 =
6. 6.8 × 8 =
7. 7.14 × 14 =
8. 8.14 × 11 =
9. 9.9 × 9 =
10. 10.9 × 9 =
11. 11.108 × 115 =
12. 12.112 × 97 =
13. 13.12 × 6 =
14. 14.9 × 7 =
15. 15.109 × 89 =
16. 16.14 × 7 =
17. 17.993 × 985 =
18. 18.995 × 998 =
19. 19.14 × 9 =
20. 20.7 × 8 =
21. 21.7 × 8 =
22. 22.103 × 106 =
23. 23.109 × 89 =
24. 24.85 × 96 =
25. 25.978 × 978 =
26. 26.91 × 89 =
27. 27.104 × 104 =
28. 28.1025 × 1014 =
29. 29.108 × 115 =
30. 30.1015 × 1040 =
31. 31.103 × 113 =
32. 32.112 × 103 =
33. 33.6 × 8 =
34. 34.13 × 12 =
35. 35.11 × 9 =
36. 36.1027 × 1017 =
37. 37.105 × 88 =
38. 38.99 × 89 =
39. 39.7 × 8 =
40. 40.96 × 92 =

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