Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 780 · 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. 1.62 × 63 =
2. 2.79 × 77 =
3. 3.499 × 494 =
4. 4.197 × 197 =
5. 5.297 × 297 =
6. 6.22 × 23 =
7. 7.42 × 44 =
8. 8.495 × 491 =
9. 9.501 × 505 =
10. 10.52 × 54 =
11. 11.79 × 79 =
12. 12.509 × 502 =
13. 13.36 × 38 =
14. 14.89 × 86 =
15. 15.37 × 39 =
16. 16.83 × 84 =
17. 17.394 × 398 =
18. 18.306 × 309 =
19. 19.32 × 31 =
20. 20.33 × 33 =
21. 21.293 × 293 =
22. 22.398 × 397 =
23. 23.398 × 398 =
24. 24.494 × 493 =
25. 25.92 × 93 =
26. 26.22 × 22 =
27. 27.81 × 81 =
28. 28.17 × 18 =
29. 29.31 × 33 =
30. 30.26 × 29 =
31. 31.598 × 598 =
32. 32.609 × 609 =
33. 33.295 × 291 =
34. 34.294 × 297 =
35. 35.64 × 62 =
36. 36.601 × 604 =
37. 37.491 × 493 =
38. 38.303 × 309 =
39. 39.499 × 492 =
40. 40.71 × 72 =

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