Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 702 · 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. 1.6 × 6 =
2. 2.9 × 7 =
3. 3.90 × 97 =
4. 4.107 × 99 =
5. 5.9 × 7 =
6. 6.11 × 14 =
7. 7.1039 × 1014 =
8. 8.12 × 13 =
9. 9.104 × 86 =
10. 10.999 × 962 =
11. 11.102 × 93 =
12. 12.99 × 91 =
13. 13.111 × 105 =
14. 14.92 × 87 =
15. 15.107 × 96 =
16. 16.97 × 89 =
17. 17.14 × 6 =
18. 18.11 × 11 =
19. 19.101 × 96 =
20. 20.102 × 102 =
21. 21.9 × 9 =
22. 22.95 × 91 =
23. 23.7 × 7 =
24. 24.101 × 85 =
25. 25.12 × 11 =
26. 26.14 × 12 =
27. 27.88 × 92 =
28. 28.6 × 8 =
29. 29.105 × 108 =
30. 30.13 × 12 =
31. 31.9 × 9 =
32. 32.1027 × 1004 =
33. 33.95 × 93 =
34. 34.102 × 105 =
35. 35.110 × 112 =
36. 36.9 × 6 =
37. 37.95 × 91 =
38. 38.111 × 88 =
39. 39.1007 × 974 =
40. 40.92 × 91 =

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