Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 64 · 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. 1.9 × 8 =
2. 2.99 × 86 =
3. 3.99 × 99 =
4. 4.7 × 6 =
5. 5.8 × 6 =
6. 6.104 × 91 =
7. 7.107 × 99 =
8. 8.95 × 99 =
9. 9.6 × 6 =
10. 10.88 × 99 =
11. 11.966 × 962 =
12. 12.9 × 6 =
13. 13.87 × 93 =
14. 14.102 × 92 =
15. 15.14 × 7 =
16. 16.111 × 94 =
17. 17.105 × 113 =
18. 18.114 × 109 =
19. 19.115 × 89 =
20. 20.9 × 7 =
21. 21.104 × 90 =
22. 22.980 × 992 =
23. 23.14 × 13 =
24. 24.14 × 12 =
25. 25.111 × 105 =
26. 26.1022 × 1036 =
27. 27.114 × 88 =
28. 28.99 × 97 =
29. 29.1027 × 1035 =
30. 30.7 × 6 =
31. 31.101 × 112 =
32. 32.110 × 95 =
33. 33.13 × 13 =
34. 34.102 × 114 =
35. 35.114 × 92 =
36. 36.1022 × 1008 =
37. 37.6 × 8 =
38. 38.6 × 7 =
39. 39.113 × 101 =
40. 40.97 × 88 =

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