Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 237 · 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. 1.13 × 11 =
2. 2.1020 × 993 =
3. 3.112 × 113 =
4. 4.104 × 108 =
5. 5.108 × 110 =
6. 6.1037 × 1036 =
7. 7.109 × 102 =
8. 8.101 × 112 =
9. 9.7 × 8 =
10. 10.1006 × 1029 =
11. 11.1008 × 1014 =
12. 12.1023 × 975 =
13. 13.1003 × 992 =
14. 14.11 × 13 =
15. 15.7 × 9 =
16. 16.96 × 94 =
17. 17.92 × 96 =
18. 18.7 × 9 =
19. 19.98 × 87 =
20. 20.14 × 8 =
21. 21.102 × 102 =
22. 22.13 × 12 =
23. 23.12 × 7 =
24. 24.111 × 89 =
25. 25.111 × 96 =
26. 26.109 × 94 =
27. 27.102 × 113 =
28. 28.12 × 13 =
29. 29.106 × 101 =
30. 30.11 × 12 =
31. 31.11 × 12 =
32. 32.96 × 85 =
33. 33.14 × 13 =
34. 34.114 × 101 =
35. 35.6 × 8 =
36. 36.1039 × 997 =
37. 37.6 × 7 =
38. 38.1037 × 1007 =
39. 39.8 × 8 =
40. 40.14 × 7 =

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