Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 657 · 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. 1.74 × 71 =
2. 2.603 × 603 =
3. 3.591 × 594 =
4. 4.507 × 505 =
5. 5.72 × 71 =
6. 6.204 × 202 =
7. 7.92 × 93 =
8. 8.596 × 592 =
9. 9.44 × 44 =
10. 10.41 × 42 =
11. 11.607 × 604 =
12. 12.17 × 17 =
13. 13.196 × 195 =
14. 14.81 × 81 =
15. 15.603 × 603 =
16. 16.396 × 391 =
17. 17.199 × 199 =
18. 18.66 × 69 =
19. 19.52 × 54 =
20. 20.493 × 494 =
21. 21.495 × 499 =
22. 22.598 × 593 =
23. 23.73 × 73 =
24. 24.64 × 61 =
25. 25.195 × 193 =
26. 26.56 × 58 =
27. 27.194 × 199 =
28. 28.397 × 395 =
29. 29.67 × 66 =
30. 30.593 × 598 =
31. 31.591 × 594 =
32. 32.492 × 499 =
33. 33.299 × 294 =
34. 34.19 × 19 =
35. 35.59 × 57 =
36. 36.16 × 17 =
37. 37.43 × 43 =
38. 38.82 × 84 =
39. 39.203 × 202 =
40. 40.497 × 494 =

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