Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 68 · 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. 1.1021 × 971 =
2. 2.13 × 11 =
3. 3.104 × 107 =
4. 4.1033 × 1017 =
5. 5.96 × 96 =
6. 6.9 × 8 =
7. 7.101 × 101 =
8. 8.13 × 13 =
9. 9.90 × 94 =
10. 10.6 × 8 =
11. 11.974 × 992 =
12. 12.981 × 961 =
13. 13.1032 × 1014 =
14. 14.12 × 11 =
15. 15.87 × 89 =
16. 16.115 × 102 =
17. 17.13 × 12 =
18. 18.97 × 93 =
19. 19.103 × 95 =
20. 20.7 × 6 =
21. 21.8 × 6 =
22. 22.8 × 6 =
23. 23.1009 × 1014 =
24. 24.105 × 94 =
25. 25.11 × 12 =
26. 26.113 × 87 =
27. 27.109 × 98 =
28. 28.97 × 89 =
29. 29.102 × 111 =
30. 30.12 × 11 =
31. 31.99 × 88 =
32. 32.112 × 104 =
33. 33.86 × 85 =
34. 34.1010 × 996 =
35. 35.92 × 91 =
36. 36.91 × 91 =
37. 37.993 × 980 =
38. 38.105 × 96 =
39. 39.109 × 105 =
40. 40.976 × 967 =

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