Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 142 · 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. 1.99 × 99 =
2. 2.87 × 90 =
3. 3.7 × 6 =
4. 4.97 × 96 =
5. 5.93 × 94 =
6. 6.110 × 90 =
7. 7.8 × 6 =
8. 8.1014 × 993 =
9. 9.1022 × 969 =
10. 10.1035 × 971 =
11. 11.98 × 95 =
12. 12.6 × 6 =
13. 13.115 × 87 =
14. 14.9 × 8 =
15. 15.101 × 91 =
16. 16.11 × 13 =
17. 17.95 × 91 =
18. 18.6 × 9 =
19. 19.105 × 104 =
20. 20.105 × 105 =
21. 21.961 × 983 =
22. 22.1028 × 996 =
23. 23.113 × 86 =
24. 24.11 × 11 =
25. 25.115 × 85 =
26. 26.113 × 109 =
27. 27.111 × 103 =
28. 28.113 × 109 =
29. 29.6 × 8 =
30. 30.112 × 101 =
31. 31.114 × 97 =
32. 32.12 × 11 =
33. 33.101 × 97 =
34. 34.1027 × 1017 =
35. 35.108 × 104 =
36. 36.106 × 92 =
37. 37.86 × 98 =
38. 38.9 × 6 =
39. 39.973 × 990 =
40. 40.1024 × 1031 =

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