Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 613 · 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. 1.1026 × 1038 =
2. 2.113 × 108 =
3. 3.93 × 94 =
4. 4.970 × 968 =
5. 5.111 × 98 =
6. 6.1035 × 987 =
7. 7.12 × 8 =
8. 8.12 × 7 =
9. 9.96 × 99 =
10. 10.98 × 91 =
11. 11.106 × 97 =
12. 12.107 × 101 =
13. 13.13 × 9 =
14. 14.8 × 7 =
15. 15.113 × 112 =
16. 16.984 × 993 =
17. 17.6 × 9 =
18. 18.12 × 13 =
19. 19.13 × 7 =
20. 20.105 × 114 =
21. 21.12 × 13 =
22. 22.13 × 14 =
23. 23.108 × 95 =
24. 24.11 × 14 =
25. 25.6 × 8 =
26. 26.12 × 7 =
27. 27.106 × 102 =
28. 28.1022 × 974 =
29. 29.1026 × 1022 =
30. 30.997 × 992 =
31. 31.6 × 7 =
32. 32.12 × 6 =
33. 33.1002 × 967 =
34. 34.1040 × 1035 =
35. 35.7 × 6 =
36. 36.1002 × 965 =
37. 37.14 × 14 =
38. 38.88 × 97 =
39. 39.7 × 7 =
40. 40.961 × 981 =

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