Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 74 · 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. 1.41 × 43 =
2. 2.77 × 76 =
3. 3.63 × 61 =
4. 4.608 × 602 =
5. 5.16 × 17 =
6. 6.84 × 84 =
7. 7.497 × 494 =
8. 8.48 × 46 =
9. 9.47 × 48 =
10. 10.201 × 208 =
11. 11.493 × 491 =
12. 12.83 × 83 =
13. 13.301 × 305 =
14. 14.591 × 592 =
15. 15.21 × 21 =
16. 16.296 × 294 =
17. 17.16 × 19 =
18. 18.72 × 73 =
19. 19.36 × 37 =
20. 20.39 × 38 =
21. 21.61 × 61 =
22. 22.297 × 294 =
23. 23.87 × 88 =
24. 24.69 × 66 =
25. 25.506 × 505 =
26. 26.205 × 204 =
27. 27.62 × 64 =
28. 28.499 × 499 =
29. 29.409 × 408 =
30. 30.209 × 204 =
31. 31.191 × 192 =
32. 32.594 × 597 =
33. 33.44 × 43 =
34. 34.202 × 201 =
35. 35.606 × 602 =
36. 36.295 × 292 =
37. 37.397 × 396 =
38. 38.17 × 16 =
39. 39.39 × 37 =
40. 40.34 × 33 =

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