Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 60 · 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. 1.502 × 507 =
2. 2.602 × 602 =
3. 3.33 × 34 =
4. 4.203 × 209 =
5. 5.596 × 596 =
6. 6.29 × 27 =
7. 7.39 × 38 =
8. 8.193 × 192 =
9. 9.18 × 16 =
10. 10.39 × 38 =
11. 11.398 × 395 =
12. 12.54 × 53 =
13. 13.49 × 46 =
14. 14.305 × 304 =
15. 15.54 × 53 =
16. 16.77 × 77 =
17. 17.593 × 597 =
18. 18.302 × 301 =
19. 19.39 × 39 =
20. 20.394 × 393 =
21. 21.593 × 592 =
22. 22.29 × 29 =
23. 23.51 × 51 =
24. 24.392 × 391 =
25. 25.87 × 88 =
26. 26.31 × 33 =
27. 27.23 × 21 =
28. 28.59 × 56 =
29. 29.399 × 391 =
30. 30.206 × 205 =
31. 31.506 × 501 =
32. 32.93 × 91 =
33. 33.62 × 61 =
34. 34.607 × 609 =
35. 35.33 × 31 =
36. 36.32 × 32 =
37. 37.595 × 598 =
38. 38.31 × 31 =
39. 39.201 × 202 =
40. 40.42 × 43 =

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