Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 533 · 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 × 506 =
2. 2.19 × 19 =
3. 3.307 × 306 =
4. 4.43 × 41 =
5. 5.79 × 79 =
6. 6.509 × 504 =
7. 7.92 × 91 =
8. 8.94 × 91 =
9. 9.191 × 199 =
10. 10.201 × 203 =
11. 11.61 × 62 =
12. 12.305 × 308 =
13. 13.67 × 67 =
14. 14.297 × 297 =
15. 15.193 × 192 =
16. 16.33 × 33 =
17. 17.199 × 198 =
18. 18.18 × 19 =
19. 19.53 × 51 =
20. 20.292 × 297 =
21. 21.84 × 83 =
22. 22.292 × 292 =
23. 23.49 × 47 =
24. 24.34 × 34 =
25. 25.402 × 401 =
26. 26.82 × 82 =
27. 27.393 × 392 =
28. 28.399 × 398 =
29. 29.51 × 54 =
30. 30.306 × 302 =
31. 31.44 × 43 =
32. 32.53 × 51 =
33. 33.76 × 79 =
34. 34.57 × 56 =
35. 35.606 × 605 =
36. 36.74 × 73 =
37. 37.507 × 507 =
38. 38.401 × 402 =
39. 39.66 × 69 =
40. 40.293 × 292 =

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