Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 167 · 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. 1.99 × 92 =
2. 2.6 × 8 =
3. 3.9 × 8 =
4. 4.85 × 99 =
5. 5.6 × 9 =
6. 6.103 × 97 =
7. 7.7 × 9 =
8. 8.106 × 97 =
9. 9.12 × 11 =
10. 10.105 × 106 =
11. 11.115 × 105 =
12. 12.8 × 8 =
13. 13.983 × 972 =
14. 14.967 × 962 =
15. 15.996 × 963 =
16. 16.91 × 94 =
17. 17.89 × 90 =
18. 18.95 × 99 =
19. 19.992 × 979 =
20. 20.88 × 99 =
21. 21.86 × 86 =
22. 22.112 × 105 =
23. 23.12 × 9 =
24. 24.111 × 104 =
25. 25.6 × 9 =
26. 26.115 × 108 =
27. 27.978 × 994 =
28. 28.114 × 99 =
29. 29.92 × 96 =
30. 30.1012 × 1015 =
31. 31.98 × 96 =
32. 32.9 × 9 =
33. 33.7 × 7 =
34. 34.98 × 89 =
35. 35.974 × 963 =
36. 36.12 × 8 =
37. 37.107 × 89 =
38. 38.964 × 995 =
39. 39.106 × 98 =
40. 40.7 × 7 =

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