Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 433 · 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. 1.37 × 37 =
2. 2.69 × 69 =
3. 3.26 × 26 =
4. 4.207 × 205 =
5. 5.91 × 94 =
6. 6.48 × 47 =
7. 7.67 × 66 =
8. 8.31 × 34 =
9. 9.27 × 26 =
10. 10.39 × 39 =
11. 11.294 × 293 =
12. 12.398 × 393 =
13. 13.503 × 502 =
14. 14.391 × 398 =
15. 15.502 × 501 =
16. 16.201 × 201 =
17. 17.93 × 91 =
18. 18.402 × 408 =
19. 19.397 × 399 =
20. 20.69 × 67 =
21. 21.491 × 499 =
22. 22.67 × 66 =
23. 23.32 × 32 =
24. 24.593 × 596 =
25. 25.294 × 299 =
26. 26.27 × 28 =
27. 27.193 × 195 =
28. 28.84 × 83 =
29. 29.74 × 72 =
30. 30.61 × 64 =
31. 31.507 × 503 =
32. 32.78 × 76 =
33. 33.88 × 88 =
34. 34.301 × 306 =
35. 35.291 × 294 =
36. 36.81 × 83 =
37. 37.72 × 71 =
38. 38.297 × 293 =
39. 39.195 × 195 =
40. 40.27 × 29 =

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