Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 145 · 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. 1.607 × 602 =
2. 2.67 × 66 =
3. 3.503 × 506 =
4. 4.59 × 57 =
5. 5.77 × 78 =
6. 6.297 × 295 =
7. 7.42 × 42 =
8. 8.79 × 77 =
9. 9.92 × 91 =
10. 10.203 × 206 =
11. 11.598 × 599 =
12. 12.71 × 72 =
13. 13.493 × 492 =
14. 14.306 × 307 =
15. 15.508 × 509 =
16. 16.208 × 209 =
17. 17.599 × 598 =
18. 18.394 × 394 =
19. 19.401 × 405 =
20. 20.302 × 305 =
21. 21.497 × 492 =
22. 22.508 × 503 =
23. 23.59 × 59 =
24. 24.58 × 58 =
25. 25.63 × 64 =
26. 26.44 × 41 =
27. 27.197 × 193 =
28. 28.401 × 408 =
29. 29.491 × 499 =
30. 30.38 × 37 =
31. 31.395 × 398 =
32. 32.408 × 402 =
33. 33.502 × 503 =
34. 34.23 × 22 =
35. 35.61 × 63 =
36. 36.72 × 74 =
37. 37.599 × 599 =
38. 38.54 × 53 =
39. 39.61 × 62 =
40. 40.82 × 83 =

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