Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 468 · 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. 1.8 × 9 =
2. 2.8 × 6 =
3. 3.11 × 9 =
4. 4.8 × 7 =
5. 5.114 × 109 =
6. 6.1018 × 1017 =
7. 7.103 × 95 =
8. 8.977 × 976 =
9. 9.110 × 112 =
10. 10.967 × 993 =
11. 11.112 × 98 =
12. 12.110 × 113 =
13. 13.104 × 103 =
14. 14.8 × 8 =
15. 15.6 × 9 =
16. 16.99 × 99 =
17. 17.14 × 6 =
18. 18.6 × 8 =
19. 19.90 × 98 =
20. 20.990 × 967 =
21. 21.1030 × 977 =
22. 22.1040 × 1028 =
23. 23.6 × 9 =
24. 24.99 × 92 =
25. 25.1001 × 1021 =
26. 26.960 × 996 =
27. 27.13 × 12 =
28. 28.108 × 96 =
29. 29.101 × 89 =
30. 30.94 × 93 =
31. 31.103 × 103 =
32. 32.103 × 101 =
33. 33.109 × 112 =
34. 34.13 × 9 =
35. 35.110 × 109 =
36. 36.94 × 90 =
37. 37.109 × 105 =
38. 38.114 × 89 =
39. 39.113 × 111 =
40. 40.11 × 9 =

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