Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 778 · 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. 1.965 × 985 =
2. 2.88 × 91 =
3. 3.96 × 89 =
4. 4.9 × 7 =
5. 5.8 × 9 =
6. 6.95 × 89 =
7. 7.12 × 8 =
8. 8.110 × 103 =
9. 9.86 × 90 =
10. 10.90 × 87 =
11. 11.1019 × 1031 =
12. 12.95 × 98 =
13. 13.12 × 8 =
14. 14.102 × 98 =
15. 15.110 × 96 =
16. 16.99 × 90 =
17. 17.104 × 108 =
18. 18.99 × 93 =
19. 19.110 × 109 =
20. 20.11 × 14 =
21. 21.111 × 104 =
22. 22.106 × 107 =
23. 23.101 × 101 =
24. 24.104 × 88 =
25. 25.980 × 985 =
26. 26.106 × 93 =
27. 27.1003 × 1031 =
28. 28.12 × 7 =
29. 29.974 × 970 =
30. 30.982 × 984 =
31. 31.86 × 94 =
32. 32.105 × 114 =
33. 33.101 × 107 =
34. 34.109 × 93 =
35. 35.110 × 105 =
36. 36.104 × 98 =
37. 37.9 × 7 =
38. 38.12 × 11 =
39. 39.7 × 8 =
40. 40.8 × 8 =

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