Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 884 · 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. 2.99 × 95 =
3. 3.12 × 7 =
4. 4.11 × 12 =
5. 5.104 × 107 =
6. 6.112 × 106 =
7. 7.11 × 13 =
8. 8.114 × 87 =
9. 9.1001 × 1022 =
10. 10.11 × 6 =
11. 11.973 × 980 =
12. 12.988 × 970 =
13. 13.86 × 95 =
14. 14.108 × 103 =
15. 15.107 × 106 =
16. 16.103 × 111 =
17. 17.91 × 91 =
18. 18.103 × 110 =
19. 19.111 × 110 =
20. 20.12 × 14 =
21. 21.11 × 14 =
22. 22.12 × 14 =
23. 23.14 × 12 =
24. 24.94 × 97 =
25. 25.112 × 91 =
26. 26.13 × 7 =
27. 27.102 × 104 =
28. 28.979 × 984 =
29. 29.8 × 8 =
30. 30.108 × 105 =
31. 31.92 × 92 =
32. 32.105 × 91 =
33. 33.7 × 7 =
34. 34.1014 × 1011 =
35. 35.95 × 91 =
36. 36.115 × 102 =
37. 37.7 × 9 =
38. 38.101 × 87 =
39. 39.995 × 977 =
40. 40.98 × 85 =

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