Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 687 · 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. 1.84 × 83 =
2. 2.292 × 297 =
3. 3.19 × 19 =
4. 4.33 × 31 =
5. 5.93 × 93 =
6. 6.502 × 504 =
7. 7.299 × 297 =
8. 8.596 × 599 =
9. 9.401 × 409 =
10. 10.595 × 592 =
11. 11.21 × 22 =
12. 12.404 × 409 =
13. 13.209 × 205 =
14. 14.296 × 295 =
15. 15.307 × 308 =
16. 16.27 × 28 =
17. 17.505 × 509 =
18. 18.199 × 195 =
19. 19.51 × 53 =
20. 20.67 × 69 =
21. 21.41 × 43 =
22. 22.293 × 292 =
23. 23.491 × 497 =
24. 24.404 × 402 =
25. 25.93 × 93 =
26. 26.49 × 48 =
27. 27.292 × 293 =
28. 28.59 × 59 =
29. 29.601 × 603 =
30. 30.31 × 32 =
31. 31.31 × 32 =
32. 32.59 × 58 =
33. 33.506 × 507 =
34. 34.78 × 78 =
35. 35.594 × 593 =
36. 36.608 × 608 =
37. 37.62 × 61 =
38. 38.594 × 595 =
39. 39.48 × 47 =
40. 40.304 × 306 =

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