Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 542 · 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. 1.1007 × 988 =
2. 2.963 × 996 =
3. 3.109 × 101 =
4. 4.1019 × 1032 =
5. 5.7 × 9 =
6. 6.86 × 98 =
7. 7.95 × 86 =
8. 8.968 × 980 =
9. 9.113 × 92 =
10. 10.1014 × 1038 =
11. 11.1038 × 1037 =
12. 12.99 × 86 =
13. 13.101 × 98 =
14. 14.112 × 96 =
15. 15.987 × 983 =
16. 16.967 × 975 =
17. 17.993 × 961 =
18. 18.11 × 12 =
19. 19.1030 × 997 =
20. 20.105 × 103 =
21. 21.1034 × 1008 =
22. 22.1011 × 985 =
23. 23.106 × 110 =
24. 24.110 × 104 =
25. 25.113 × 111 =
26. 26.11 × 12 =
27. 27.11 × 12 =
28. 28.99 × 89 =
29. 29.98 × 96 =
30. 30.12 × 13 =
31. 31.961 × 971 =
32. 32.12 × 9 =
33. 33.92 × 93 =
34. 34.105 × 112 =
35. 35.6 × 7 =
36. 36.979 × 982 =
37. 37.13 × 9 =
38. 38.105 × 102 =
39. 39.104 × 111 =
40. 40.102 × 102 =

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