Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 633 · 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. 1.94 × 97 =
2. 2.86 × 92 =
3. 3.112 × 113 =
4. 4.998 × 983 =
5. 5.113 × 113 =
6. 6.104 × 104 =
7. 7.13 × 8 =
8. 8.6 × 8 =
9. 9.96 × 89 =
10. 10.988 × 992 =
11. 11.104 × 106 =
12. 12.13 × 9 =
13. 13.114 × 98 =
14. 14.115 × 97 =
15. 15.89 × 86 =
16. 16.1006 × 1035 =
17. 17.14 × 12 =
18. 18.1024 × 964 =
19. 19.12 × 9 =
20. 20.106 × 110 =
21. 21.90 × 88 =
22. 22.102 × 92 =
23. 23.88 × 89 =
24. 24.89 × 98 =
25. 25.14 × 11 =
26. 26.92 × 96 =
27. 27.91 × 97 =
28. 28.1016 × 971 =
29. 29.1017 × 1032 =
30. 30.1027 × 1018 =
31. 31.1001 × 1036 =
32. 32.86 × 88 =
33. 33.92 × 86 =
34. 34.96 × 89 =
35. 35.90 × 89 =
36. 36.99 × 86 =
37. 37.6 × 6 =
38. 38.86 × 97 =
39. 39.107 × 91 =
40. 40.97 × 98 =

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