Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 299 · 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. 1.95 × 93 =
2. 2.6 × 8 =
3. 3.1014 × 1038 =
4. 4.99 × 90 =
5. 5.6 × 6 =
6. 6.102 × 112 =
7. 7.86 × 87 =
8. 8.8 × 7 =
9. 9.108 × 110 =
10. 10.1001 × 970 =
11. 11.106 × 88 =
12. 12.102 × 91 =
13. 13.6 × 9 =
14. 14.90 × 90 =
15. 15.103 × 113 =
16. 16.115 × 107 =
17. 17.1024 × 1019 =
18. 18.8 × 9 =
19. 19.91 × 91 =
20. 20.1002 × 1031 =
21. 21.98 × 94 =
22. 22.101 × 96 =
23. 23.92 × 85 =
24. 24.6 × 9 =
25. 25.11 × 8 =
26. 26.108 × 106 =
27. 27.112 × 110 =
28. 28.14 × 6 =
29. 29.6 × 9 =
30. 30.979 × 973 =
31. 31.7 × 9 =
32. 32.999 × 971 =
33. 33.102 × 88 =
34. 34.103 × 103 =
35. 35.112 × 91 =
36. 36.12 × 14 =
37. 37.115 × 105 =
38. 38.14 × 11 =
39. 39.104 × 112 =
40. 40.982 × 980 =

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