Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 98 · 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 × 98 =
2. 2.6 × 7 =
3. 3.111 × 86 =
4. 4.102 × 85 =
5. 5.13 × 13 =
6. 6.9 × 8 =
7. 7.101 × 94 =
8. 8.963 × 997 =
9. 9.1021 × 977 =
10. 10.108 × 111 =
11. 11.88 × 90 =
12. 12.1016 × 1015 =
13. 13.85 × 94 =
14. 14.11 × 6 =
15. 15.101 × 107 =
16. 16.13 × 12 =
17. 17.6 × 8 =
18. 18.105 × 85 =
19. 19.12 × 13 =
20. 20.107 × 97 =
21. 21.104 × 87 =
22. 22.11 × 7 =
23. 23.92 × 97 =
24. 24.6 × 7 =
25. 25.102 × 113 =
26. 26.1013 × 1008 =
27. 27.12 × 14 =
28. 28.112 × 94 =
29. 29.964 × 967 =
30. 30.1019 × 980 =
31. 31.114 × 106 =
32. 32.8 × 6 =
33. 33.11 × 12 =
34. 34.8 × 9 =
35. 35.112 × 101 =
36. 36.12 × 14 =
37. 37.993 × 978 =
38. 38.992 × 967 =
39. 39.111 × 110 =
40. 40.11 × 12 =

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