Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 790 · 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. 1.501 × 504 =
2. 2.42 × 43 =
3. 3.28 × 29 =
4. 4.44 × 44 =
5. 5.44 × 42 =
6. 6.31 × 32 =
7. 7.202 × 204 =
8. 8.87 × 88 =
9. 9.31 × 33 =
10. 10.499 × 491 =
11. 11.503 × 506 =
12. 12.27 × 27 =
13. 13.39 × 38 =
14. 14.28 × 26 =
15. 15.597 × 592 =
16. 16.73 × 71 =
17. 17.601 × 601 =
18. 18.307 × 306 =
19. 19.508 × 503 =
20. 20.42 × 41 =
21. 21.88 × 87 =
22. 22.57 × 56 =
23. 23.21 × 24 =
24. 24.44 × 41 =
25. 25.53 × 52 =
26. 26.497 × 494 =
27. 27.201 × 207 =
28. 28.393 × 398 =
29. 29.72 × 71 =
30. 30.87 × 87 =
31. 31.209 × 209 =
32. 32.202 × 203 =
33. 33.56 × 59 =
34. 34.49 × 49 =
35. 35.398 × 392 =
36. 36.22 × 23 =
37. 37.593 × 598 =
38. 38.91 × 94 =
39. 39.19 × 19 =
40. 40.405 × 409 =

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