Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 855 · 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. 1.9 × 8 =
2. 2.6 × 7 =
3. 3.6 × 6 =
4. 4.14 × 13 =
5. 5.85 × 95 =
6. 6.9 × 8 =
7. 7.998 × 999 =
8. 8.96 × 98 =
9. 9.1007 × 962 =
10. 10.105 × 102 =
11. 11.11 × 13 =
12. 12.12 × 9 =
13. 13.104 × 107 =
14. 14.110 × 90 =
15. 15.91 × 89 =
16. 16.1033 × 1002 =
17. 17.6 × 6 =
18. 18.107 × 107 =
19. 19.12 × 11 =
20. 20.102 × 106 =
21. 21.6 × 6 =
22. 22.1018 × 1040 =
23. 23.997 × 998 =
24. 24.106 × 96 =
25. 25.1007 × 1019 =
26. 26.104 × 99 =
27. 27.92 × 85 =
28. 28.87 × 98 =
29. 29.112 × 95 =
30. 30.113 × 106 =
31. 31.106 × 112 =
32. 32.88 × 86 =
33. 33.106 × 103 =
34. 34.9 × 9 =
35. 35.999 × 977 =
36. 36.988 × 980 =
37. 37.99 × 90 =
38. 38.9 × 8 =
39. 39.107 × 107 =
40. 40.110 × 106 =

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