Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 550 · 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. 1.111 × 105 =
2. 2.12 × 12 =
3. 3.104 × 95 =
4. 4.101 × 106 =
5. 5.9 × 8 =
6. 6.1036 × 1019 =
7. 7.113 × 110 =
8. 8.9 × 6 =
9. 9.96 × 89 =
10. 10.108 × 92 =
11. 11.109 × 86 =
12. 12.8 × 7 =
13. 13.111 × 85 =
14. 14.7 × 8 =
15. 15.93 × 85 =
16. 16.1035 × 1017 =
17. 17.102 × 108 =
18. 18.1006 × 981 =
19. 19.114 × 98 =
20. 20.114 × 113 =
21. 21.109 × 98 =
22. 22.108 × 99 =
23. 23.103 × 95 =
24. 24.85 × 89 =
25. 25.1034 × 1029 =
26. 26.12 × 9 =
27. 27.9 × 8 =
28. 28.107 × 109 =
29. 29.12 × 11 =
30. 30.11 × 7 =
31. 31.1017 × 982 =
32. 32.1040 × 987 =
33. 33.110 × 102 =
34. 34.1018 × 1032 =
35. 35.110 × 96 =
36. 36.99 × 96 =
37. 37.115 × 90 =
38. 38.8 × 8 =
39. 39.973 × 972 =
40. 40.8 × 6 =

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