Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 224 · 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. 1.104 × 108 =
2. 2.108 × 110 =
3. 3.102 × 112 =
4. 4.8 × 6 =
5. 5.112 × 104 =
6. 6.98 × 88 =
7. 7.106 × 88 =
8. 8.7 × 9 =
9. 9.104 × 112 =
10. 10.112 × 95 =
11. 11.1033 × 1013 =
12. 12.8 × 8 =
13. 13.975 × 972 =
14. 14.106 × 111 =
15. 15.961 × 964 =
16. 16.90 × 85 =
17. 17.101 × 109 =
18. 18.11 × 6 =
19. 19.1038 × 1019 =
20. 20.983 × 989 =
21. 21.96 × 93 =
22. 22.1035 × 961 =
23. 23.91 × 85 =
24. 24.92 × 98 =
25. 25.1009 × 977 =
26. 26.1027 × 1017 =
27. 27.13 × 12 =
28. 28.106 × 94 =
29. 29.12 × 12 =
30. 30.112 × 102 =
31. 31.95 × 94 =
32. 32.91 × 98 =
33. 33.12 × 13 =
34. 34.7 × 7 =
35. 35.9 × 7 =
36. 36.99 × 87 =
37. 37.11 × 7 =
38. 38.106 × 103 =
39. 39.94 × 97 =
40. 40.12 × 11 =

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