Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 772 · 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. 1.114 × 104 =
2. 2.87 × 99 =
3. 3.8 × 6 =
4. 4.8 × 9 =
5. 5.11 × 6 =
6. 6.8 × 6 =
7. 7.102 × 110 =
8. 8.12 × 8 =
9. 9.8 × 6 =
10. 10.9 × 6 =
11. 11.102 × 90 =
12. 12.113 × 103 =
13. 13.7 × 7 =
14. 14.114 × 86 =
15. 15.88 × 95 =
16. 16.13 × 14 =
17. 17.95 × 93 =
18. 18.960 × 985 =
19. 19.107 × 111 =
20. 20.13 × 12 =
21. 21.1030 × 1026 =
22. 22.1010 × 990 =
23. 23.12 × 12 =
24. 24.103 × 114 =
25. 25.11 × 12 =
26. 26.102 × 109 =
27. 27.95 × 90 =
28. 28.992 × 993 =
29. 29.99 × 85 =
30. 30.1018 × 1004 =
31. 31.89 × 98 =
32. 32.108 × 106 =
33. 33.86 × 95 =
34. 34.113 × 111 =
35. 35.98 × 91 =
36. 36.7 × 9 =
37. 37.13 × 6 =
38. 38.92 × 89 =
39. 39.103 × 104 =
40. 40.9 × 8 =

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