Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 593 · 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. 1.7 × 7 =
2. 2.9 × 8 =
3. 3.94 × 98 =
4. 4.6 × 6 =
5. 5.102 × 98 =
6. 6.115 × 102 =
7. 7.96 × 85 =
8. 8.14 × 14 =
9. 9.11 × 13 =
10. 10.8 × 6 =
11. 11.114 × 96 =
12. 12.108 × 113 =
13. 13.8 × 8 =
14. 14.86 × 99 =
15. 15.9 × 9 =
16. 16.101 × 110 =
17. 17.113 × 107 =
18. 18.94 × 85 =
19. 19.11 × 7 =
20. 20.1003 × 996 =
21. 21.93 × 91 =
22. 22.1010 × 996 =
23. 23.101 × 112 =
24. 24.91 × 95 =
25. 25.1015 × 995 =
26. 26.106 × 95 =
27. 27.106 × 97 =
28. 28.109 × 110 =
29. 29.14 × 11 =
30. 30.109 × 110 =
31. 31.99 × 99 =
32. 32.112 × 96 =
33. 33.1036 × 1023 =
34. 34.108 × 110 =
35. 35.991 × 964 =
36. 36.101 × 99 =
37. 37.87 × 99 =
38. 38.107 × 109 =
39. 39.103 × 114 =
40. 40.14 × 14 =

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