Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 526 · 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. 1.94 × 88 =
2. 2.1012 × 1021 =
3. 3.14 × 11 =
4. 4.999 × 972 =
5. 5.11 × 9 =
6. 6.114 × 103 =
7. 7.13 × 13 =
8. 8.90 × 85 =
9. 9.115 × 113 =
10. 10.91 × 94 =
11. 11.113 × 104 =
12. 12.12 × 11 =
13. 13.96 × 91 =
14. 14.8 × 6 =
15. 15.89 × 98 =
16. 16.98 × 96 =
17. 17.13 × 12 =
18. 18.1021 × 1016 =
19. 19.101 × 86 =
20. 20.7 × 6 =
21. 21.991 × 994 =
22. 22.13 × 7 =
23. 23.112 × 98 =
24. 24.96 × 89 =
25. 25.103 × 96 =
26. 26.102 × 111 =
27. 27.998 × 985 =
28. 28.11 × 14 =
29. 29.95 × 90 =
30. 30.93 × 97 =
31. 31.6 × 7 =
32. 32.962 × 996 =
33. 33.88 × 87 =
34. 34.11 × 8 =
35. 35.115 × 98 =
36. 36.8 × 6 =
37. 37.7 × 6 =
38. 38.106 × 93 =
39. 39.115 × 109 =
40. 40.7 × 6 =

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