Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 350 · 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. 1.395 × 392 =
2. 2.609 × 605 =
3. 3.306 × 305 =
4. 4.393 × 394 =
5. 5.49 × 47 =
6. 6.84 × 83 =
7. 7.23 × 23 =
8. 8.46 × 49 =
9. 9.207 × 204 =
10. 10.37 × 39 =
11. 11.61 × 61 =
12. 12.498 × 495 =
13. 13.37 × 36 =
14. 14.396 × 392 =
15. 15.38 × 36 =
16. 16.201 × 208 =
17. 17.69 × 68 =
18. 18.203 × 201 =
19. 19.399 × 392 =
20. 20.24 × 22 =
21. 21.299 × 297 =
22. 22.398 × 394 =
23. 23.66 × 68 =
24. 24.595 × 599 =
25. 25.207 × 208 =
26. 26.89 × 87 =
27. 27.27 × 27 =
28. 28.191 × 199 =
29. 29.596 × 591 =
30. 30.72 × 74 =
31. 31.34 × 31 =
32. 32.29 × 28 =
33. 33.63 × 62 =
34. 34.16 × 17 =
35. 35.38 × 37 =
36. 36.21 × 22 =
37. 37.291 × 298 =
38. 38.191 × 191 =
39. 39.36 × 38 =
40. 40.88 × 86 =

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