Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 645 · 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. 1.73 × 73 =
2. 2.198 × 195 =
3. 3.507 × 502 =
4. 4.204 × 202 =
5. 5.602 × 608 =
6. 6.602 × 606 =
7. 7.63 × 61 =
8. 8.49 × 48 =
9. 9.66 × 67 =
10. 10.505 × 501 =
11. 11.63 × 61 =
12. 12.308 × 301 =
13. 13.407 × 405 =
14. 14.56 × 58 =
15. 15.499 × 493 =
16. 16.29 × 27 =
17. 17.591 × 596 =
18. 18.56 × 57 =
19. 19.396 × 395 =
20. 20.49 × 46 =
21. 21.52 × 54 =
22. 22.393 × 392 =
23. 23.76 × 76 =
24. 24.206 × 207 =
25. 25.302 × 309 =
26. 26.291 × 292 =
27. 27.494 × 495 =
28. 28.73 × 72 =
29. 29.29 × 26 =
30. 30.34 × 32 =
31. 31.89 × 87 =
32. 32.27 × 27 =
33. 33.34 × 31 =
34. 34.603 × 606 =
35. 35.67 × 66 =
36. 36.29 × 28 =
37. 37.26 × 28 =
38. 38.209 × 202 =
39. 39.391 × 394 =
40. 40.36 × 39 =

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