Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 685 · 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. 1.28 × 27 =
2. 2.401 × 407 =
3. 3.208 × 202 =
4. 4.88 × 87 =
5. 5.209 × 204 =
6. 6.199 × 199 =
7. 7.21 × 22 =
8. 8.47 × 48 =
9. 9.42 × 43 =
10. 10.504 × 508 =
11. 11.31 × 31 =
12. 12.295 × 299 =
13. 13.47 × 47 =
14. 14.306 × 304 =
15. 15.298 × 298 =
16. 16.41 × 44 =
17. 17.42 × 42 =
18. 18.63 × 63 =
19. 19.395 × 395 =
20. 20.77 × 76 =
21. 21.73 × 72 =
22. 22.78 × 79 =
23. 23.83 × 81 =
24. 24.291 × 295 =
25. 25.294 × 291 =
26. 26.78 × 79 =
27. 27.51 × 52 =
28. 28.93 × 93 =
29. 29.81 × 82 =
30. 30.609 × 607 =
31. 31.294 × 295 =
32. 32.395 × 397 =
33. 33.57 × 59 =
34. 34.393 × 391 =
35. 35.19 × 18 =
36. 36.46 × 47 =
37. 37.601 × 604 =
38. 38.195 × 194 =
39. 39.303 × 306 =
40. 40.73 × 72 =

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