Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 558 · 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. 1.108 × 98 =
2. 2.14 × 7 =
3. 3.115 × 94 =
4. 4.14 × 7 =
5. 5.8 × 9 =
6. 6.972 × 969 =
7. 7.1031 × 1018 =
8. 8.109 × 104 =
9. 9.95 × 88 =
10. 10.9 × 8 =
11. 11.11 × 13 =
12. 12.92 × 87 =
13. 13.113 × 102 =
14. 14.107 × 98 =
15. 15.12 × 9 =
16. 16.1031 × 980 =
17. 17.108 × 85 =
18. 18.8 × 7 =
19. 19.91 × 88 =
20. 20.90 × 89 =
21. 21.103 × 97 =
22. 22.114 × 86 =
23. 23.7 × 6 =
24. 24.104 × 87 =
25. 25.9 × 8 =
26. 26.107 × 94 =
27. 27.13 × 9 =
28. 28.974 × 997 =
29. 29.96 × 98 =
30. 30.6 × 6 =
31. 31.11 × 14 =
32. 32.1027 × 1030 =
33. 33.89 × 89 =
34. 34.6 × 6 =
35. 35.7 × 7 =
36. 36.115 × 114 =
37. 37.104 × 115 =
38. 38.89 × 92 =
39. 39.113 × 105 =
40. 40.1007 × 960 =

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