Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 220 · 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. 1.77 × 76 =
2. 2.86 × 87 =
3. 3.74 × 72 =
4. 4.56 × 56 =
5. 5.309 × 302 =
6. 6.17 × 19 =
7. 7.83 × 84 =
8. 8.68 × 66 =
9. 9.592 × 592 =
10. 10.299 × 294 =
11. 11.73 × 71 =
12. 12.496 × 496 =
13. 13.68 × 67 =
14. 14.27 × 28 =
15. 15.81 × 81 =
16. 16.57 × 59 =
17. 17.34 × 33 =
18. 18.91 × 93 =
19. 19.52 × 52 =
20. 20.402 × 408 =
21. 21.17 × 19 =
22. 22.302 × 304 =
23. 23.47 × 47 =
24. 24.78 × 77 =
25. 25.73 × 71 =
26. 26.31 × 33 =
27. 27.501 × 506 =
28. 28.194 × 193 =
29. 29.601 × 607 =
30. 30.504 × 508 =
31. 31.491 × 497 =
32. 32.594 × 598 =
33. 33.499 × 498 =
34. 34.495 × 496 =
35. 35.507 × 507 =
36. 36.69 × 68 =
37. 37.63 × 61 =
38. 38.27 × 28 =
39. 39.604 × 607 =
40. 40.71 × 71 =

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