Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 105 · 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. 1.12 × 14 =
2. 2.11 × 13 =
3. 3.105 × 112 =
4. 4.97 × 85 =
5. 5.975 × 983 =
6. 6.1021 × 991 =
7. 7.89 × 97 =
8. 8.7 × 6 =
9. 9.6 × 6 =
10. 10.7 × 9 =
11. 11.8 × 7 =
12. 12.14 × 8 =
13. 13.92 × 92 =
14. 14.9 × 9 =
15. 15.960 × 987 =
16. 16.105 × 105 =
17. 17.103 × 110 =
18. 18.11 × 8 =
19. 19.96 × 93 =
20. 20.98 × 93 =
21. 21.104 × 90 =
22. 22.994 × 992 =
23. 23.102 × 104 =
24. 24.87 × 86 =
25. 25.98 × 93 =
26. 26.99 × 90 =
27. 27.979 × 997 =
28. 28.95 × 88 =
29. 29.110 × 95 =
30. 30.996 × 993 =
31. 31.995 × 974 =
32. 32.9 × 8 =
33. 33.99 × 99 =
34. 34.97 × 89 =
35. 35.11 × 14 =
36. 36.88 × 87 =
37. 37.113 × 97 =
38. 38.112 × 104 =
39. 39.992 × 966 =
40. 40.7 × 8 =

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