Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 962 · 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. 1.66 × 68 =
2. 2.606 × 606 =
3. 3.51 × 52 =
4. 4.92 × 93 =
5. 5.396 × 394 =
6. 6.24 × 22 =
7. 7.72 × 71 =
8. 8.57 × 56 =
9. 9.52 × 54 =
10. 10.87 × 87 =
11. 11.207 × 204 =
12. 12.299 × 291 =
13. 13.63 × 62 =
14. 14.24 × 22 =
15. 15.88 × 86 =
16. 16.42 × 43 =
17. 17.492 × 497 =
18. 18.87 × 87 =
19. 19.61 × 61 =
20. 20.69 × 66 =
21. 21.28 × 27 =
22. 22.81 × 81 =
23. 23.46 × 49 =
24. 24.506 × 505 =
25. 25.44 × 43 =
26. 26.192 × 199 =
27. 27.46 × 46 =
28. 28.405 × 404 =
29. 29.591 × 592 =
30. 30.39 × 37 =
31. 31.56 × 59 =
32. 32.298 × 291 =
33. 33.307 × 301 =
34. 34.34 × 31 =
35. 35.596 × 599 =
36. 36.94 × 92 =
37. 37.497 × 495 =
38. 38.607 × 602 =
39. 39.87 × 86 =
40. 40.294 × 293 =

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