Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 663 · 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. 1.109 × 113 =
2. 2.96 × 98 =
3. 3.1001 × 1008 =
4. 4.978 × 977 =
5. 5.1005 × 1026 =
6. 6.1024 × 977 =
7. 7.12 × 14 =
8. 8.1017 × 1033 =
9. 9.109 × 113 =
10. 10.86 × 87 =
11. 11.13 × 13 =
12. 12.96 × 88 =
13. 13.104 × 92 =
14. 14.103 × 97 =
15. 15.7 × 9 =
16. 16.102 × 99 =
17. 17.97 × 85 =
18. 18.112 × 111 =
19. 19.1010 × 960 =
20. 20.12 × 11 =
21. 21.114 × 98 =
22. 22.1007 × 1008 =
23. 23.13 × 11 =
24. 24.104 × 115 =
25. 25.11 × 6 =
26. 26.114 × 114 =
27. 27.12 × 14 =
28. 28.989 × 969 =
29. 29.114 × 92 =
30. 30.98 × 99 =
31. 31.102 × 90 =
32. 32.102 × 88 =
33. 33.89 × 91 =
34. 34.982 × 997 =
35. 35.1003 × 1028 =
36. 36.89 × 89 =
37. 37.9 × 7 =
38. 38.114 × 102 =
39. 39.111 × 110 =
40. 40.13 × 12 =

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