Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 399 · 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. 1.52 × 53 =
2. 2.606 × 604 =
3. 3.24 × 21 =
4. 4.397 × 395 =
5. 5.497 × 498 =
6. 6.24 × 24 =
7. 7.71 × 71 =
8. 8.602 × 603 =
9. 9.402 × 407 =
10. 10.83 × 84 =
11. 11.26 × 29 =
12. 12.405 × 401 =
13. 13.28 × 27 =
14. 14.292 × 298 =
15. 15.197 × 196 =
16. 16.497 × 493 =
17. 17.31 × 32 =
18. 18.495 × 494 =
19. 19.46 × 47 =
20. 20.71 × 73 =
21. 21.394 × 393 =
22. 22.16 × 17 =
23. 23.84 × 82 =
24. 24.71 × 71 =
25. 25.599 × 596 =
26. 26.601 × 602 =
27. 27.401 × 408 =
28. 28.93 × 93 =
29. 29.599 × 598 =
30. 30.81 × 83 =
31. 31.593 × 596 =
32. 32.399 × 398 =
33. 33.83 × 83 =
34. 34.78 × 78 =
35. 35.36 × 36 =
36. 36.496 × 496 =
37. 37.63 × 63 =
38. 38.303 × 306 =
39. 39.499 × 496 =
40. 40.93 × 94 =

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