Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 120 · 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. 1.17 × 19 =
2. 2.49 × 47 =
3. 3.597 × 594 =
4. 4.206 × 209 =
5. 5.93 × 93 =
6. 6.83 × 81 =
7. 7.407 × 405 =
8. 8.16 × 19 =
9. 9.303 × 309 =
10. 10.71 × 74 =
11. 11.396 × 392 =
12. 12.24 × 21 =
13. 13.26 × 28 =
14. 14.202 × 201 =
15. 15.602 × 607 =
16. 16.76 × 79 =
17. 17.403 × 407 =
18. 18.408 × 403 =
19. 19.301 × 302 =
20. 20.207 × 203 =
21. 21.605 × 608 =
22. 22.86 × 88 =
23. 23.309 × 307 =
24. 24.84 × 83 =
25. 25.505 × 502 =
26. 26.593 × 592 =
27. 27.406 × 407 =
28. 28.86 × 86 =
29. 29.39 × 39 =
30. 30.39 × 38 =
31. 31.492 × 492 =
32. 32.291 × 292 =
33. 33.395 × 394 =
34. 34.202 × 208 =
35. 35.291 × 294 =
36. 36.197 × 191 =
37. 37.48 × 46 =
38. 38.403 × 401 =
39. 39.195 × 195 =
40. 40.69 × 67 =

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