Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 653 · 40 sums

The trick (Anurupyena): Pick the working base (like 40 = 4 × 10 or 300 = 3 × 100) and write each number’s difference from it. Cross-add as in trick 3, then multiply that left part by 4 (or 3, 5…). Right part: multiply the differences — 1 digit for a × 10 base, 2 digits for a × 100 base (carry the extra).

1. 1.42 × 44 =
2. 2.79 × 77 =
3. 3.21 × 24 =
4. 4.37 × 37 =
5. 5.302 × 301 =
6. 6.42 × 43 =
7. 7.592 × 599 =
8. 8.301 × 309 =
9. 9.599 × 591 =
10. 10.206 × 205 =
11. 11.91 × 91 =
12. 12.202 × 202 =
13. 13.391 × 392 =
14. 14.595 × 594 =
15. 15.206 × 205 =
16. 16.57 × 59 =
17. 17.19 × 17 =
18. 18.21 × 23 =
19. 19.301 × 301 =
20. 20.86 × 89 =
21. 21.29 × 26 =
22. 22.87 × 89 =
23. 23.61 × 63 =
24. 24.63 × 62 =
25. 25.79 × 78 =
26. 26.491 × 493 =
27. 27.38 × 39 =
28. 28.64 × 64 =
29. 29.37 × 36 =
30. 30.63 × 64 =
31. 31.391 × 395 =
32. 32.493 × 498 =
33. 33.203 × 207 =
34. 34.209 × 204 =
35. 35.59 × 59 =
36. 36.68 × 66 =
37. 37.305 × 305 =
38. 38.197 × 194 =
39. 39.69 × 69 =
40. 40.66 × 66 =

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