Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 101 · 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. 1.506 × 504 =
2. 2.19 × 17 =
3. 3.399 × 398 =
4. 4.33 × 34 =
5. 5.17 × 18 =
6. 6.302 × 301 =
7. 7.498 × 492 =
8. 8.291 × 299 =
9. 9.79 × 76 =
10. 10.601 × 605 =
11. 11.41 × 42 =
12. 12.44 × 44 =
13. 13.595 × 591 =
14. 14.76 × 76 =
15. 15.399 × 393 =
16. 16.205 × 208 =
17. 17.47 × 49 =
18. 18.26 × 29 =
19. 19.299 × 293 =
20. 20.598 × 598 =
21. 21.33 × 31 =
22. 22.56 × 58 =
23. 23.409 × 405 =
24. 24.72 × 74 =
25. 25.23 × 21 =
26. 26.59 × 58 =
27. 27.306 × 303 =
28. 28.601 × 604 =
29. 29.301 × 305 =
30. 30.606 × 604 =
31. 31.195 × 195 =
32. 32.54 × 52 =
33. 33.405 × 404 =
34. 34.86 × 89 =
35. 35.71 × 71 =
36. 36.398 × 394 =
37. 37.73 × 71 =
38. 38.292 × 299 =
39. 39.592 × 596 =
40. 40.21 × 22 =

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