Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 147 · 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. 1.104 × 104 =
2. 2.99 × 98 =
3. 3.97 × 88 =
4. 4.101 × 86 =
5. 5.90 × 94 =
6. 6.1005 × 988 =
7. 7.13 × 11 =
8. 8.107 × 95 =
9. 9.14 × 6 =
10. 10.94 × 86 =
11. 11.1025 × 1014 =
12. 12.106 × 110 =
13. 13.112 × 115 =
14. 14.101 × 93 =
15. 15.108 × 92 =
16. 16.960 × 976 =
17. 17.102 × 103 =
18. 18.102 × 91 =
19. 19.96 × 97 =
20. 20.6 × 7 =
21. 21.105 × 88 =
22. 22.9 × 6 =
23. 23.1010 × 988 =
24. 24.14 × 9 =
25. 25.1040 × 969 =
26. 26.14 × 11 =
27. 27.14 × 14 =
28. 28.7 × 6 =
29. 29.12 × 12 =
30. 30.8 × 6 =
31. 31.86 × 88 =
32. 32.86 × 95 =
33. 33.1004 × 972 =
34. 34.87 × 91 =
35. 35.12 × 8 =
36. 36.115 × 97 =
37. 37.1007 × 1022 =
38. 38.11 × 9 =
39. 39.101 × 103 =
40. 40.11 × 9 =

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