Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 366 · 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. 1.93 × 89 =
2. 2.13 × 11 =
3. 3.108 × 95 =
4. 4.106 × 113 =
5. 5.7 × 9 =
6. 6.986 × 995 =
7. 7.107 × 115 =
8. 8.99 × 93 =
9. 9.1029 × 1035 =
10. 10.9 × 9 =
11. 11.12 × 13 =
12. 12.95 × 87 =
13. 13.88 × 99 =
14. 14.90 × 89 =
15. 15.87 × 94 =
16. 16.992 × 984 =
17. 17.106 × 86 =
18. 18.109 × 106 =
19. 19.115 × 94 =
20. 20.113 × 96 =
21. 21.111 × 89 =
22. 22.964 × 983 =
23. 23.1007 × 994 =
24. 24.99 × 94 =
25. 25.1014 × 1030 =
26. 26.101 × 96 =
27. 27.105 × 88 =
28. 28.995 × 968 =
29. 29.1002 × 1019 =
30. 30.9 × 9 =
31. 31.9 × 7 =
32. 32.87 × 92 =
33. 33.1028 × 995 =
34. 34.106 × 88 =
35. 35.992 × 974 =
36. 36.109 × 85 =
37. 37.102 × 110 =
38. 38.104 × 111 =
39. 39.92 × 99 =
40. 40.1022 × 1028 =

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