Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 926 · 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. 1.98 × 94 =
2. 2.997 × 980 =
3. 3.115 × 89 =
4. 4.11 × 11 =
5. 5.1018 × 1012 =
6. 6.9 × 8 =
7. 7.97 × 97 =
8. 8.13 × 11 =
9. 9.6 × 6 =
10. 10.104 × 107 =
11. 11.97 × 98 =
12. 12.8 × 8 =
13. 13.89 × 87 =
14. 14.115 × 101 =
15. 15.95 × 90 =
16. 16.6 × 6 =
17. 17.112 × 111 =
18. 18.971 × 995 =
19. 19.1014 × 970 =
20. 20.960 × 980 =
21. 21.102 × 112 =
22. 22.11 × 11 =
23. 23.14 × 14 =
24. 24.101 × 101 =
25. 25.12 × 11 =
26. 26.99 × 97 =
27. 27.12 × 13 =
28. 28.999 × 998 =
29. 29.108 × 104 =
30. 30.13 × 13 =
31. 31.989 × 967 =
32. 32.1022 × 966 =
33. 33.109 × 88 =
34. 34.13 × 9 =
35. 35.989 × 985 =
36. 36.8 × 7 =
37. 37.109 × 111 =
38. 38.8 × 9 =
39. 39.8 × 6 =
40. 40.103 × 106 =

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