Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 52 · 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. 1.14 × 11 =
2. 2.6 × 9 =
3. 3.7 × 9 =
4. 4.7 × 7 =
5. 5.1003 × 1023 =
6. 6.987 × 976 =
7. 7.9 × 9 =
8. 8.95 × 87 =
9. 9.112 × 111 =
10. 10.97 × 92 =
11. 11.13 × 7 =
12. 12.972 × 971 =
13. 13.105 × 104 =
14. 14.115 × 111 =
15. 15.96 × 92 =
16. 16.970 × 968 =
17. 17.96 × 89 =
18. 18.11 × 9 =
19. 19.971 × 989 =
20. 20.96 × 98 =
21. 21.96 × 96 =
22. 22.101 × 95 =
23. 23.112 × 99 =
24. 24.111 × 104 =
25. 25.109 × 102 =
26. 26.1012 × 999 =
27. 27.104 × 105 =
28. 28.103 × 87 =
29. 29.96 × 85 =
30. 30.12 × 9 =
31. 31.9 × 9 =
32. 32.86 × 87 =
33. 33.13 × 6 =
34. 34.111 × 112 =
35. 35.8 × 8 =
36. 36.110 × 94 =
37. 37.91 × 89 =
38. 38.99 × 93 =
39. 39.91 × 94 =
40. 40.11 × 11 =

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