Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 612 · 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. 1.113 × 109 =
2. 2.112 × 105 =
3. 3.1030 × 968 =
4. 4.103 × 85 =
5. 5.108 × 97 =
6. 6.961 × 992 =
7. 7.7 × 6 =
8. 8.8 × 6 =
9. 9.9 × 6 =
10. 10.12 × 8 =
11. 11.9 × 8 =
12. 12.12 × 12 =
13. 13.92 × 85 =
14. 14.102 × 114 =
15. 15.8 × 8 =
16. 16.112 × 104 =
17. 17.112 × 105 =
18. 18.13 × 7 =
19. 19.14 × 14 =
20. 20.113 × 92 =
21. 21.115 × 99 =
22. 22.94 × 90 =
23. 23.111 × 110 =
24. 24.6 × 9 =
25. 25.964 × 960 =
26. 26.90 × 88 =
27. 27.101 × 89 =
28. 28.96 × 90 =
29. 29.9 × 6 =
30. 30.86 × 87 =
31. 31.97 × 93 =
32. 32.8 × 6 =
33. 33.101 × 105 =
34. 34.11 × 14 =
35. 35.104 × 89 =
36. 36.12 × 7 =
37. 37.12 × 9 =
38. 38.115 × 106 =
39. 39.1018 × 1029 =
40. 40.1019 × 1008 =

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