Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 273 · 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. 1.408 × 403 =
2. 2.69 × 66 =
3. 3.16 × 18 =
4. 4.292 × 294 =
5. 5.28 × 27 =
6. 6.46 × 49 =
7. 7.299 × 292 =
8. 8.602 × 604 =
9. 9.193 × 191 =
10. 10.306 × 305 =
11. 11.209 × 203 =
12. 12.202 × 208 =
13. 13.89 × 88 =
14. 14.28 × 29 =
15. 15.83 × 82 =
16. 16.58 × 57 =
17. 17.19 × 16 =
18. 18.56 × 56 =
19. 19.507 × 503 =
20. 20.77 × 76 =
21. 21.496 × 493 =
22. 22.203 × 203 =
23. 23.46 × 49 =
24. 24.49 × 49 =
25. 25.502 × 506 =
26. 26.31 × 32 =
27. 27.39 × 37 =
28. 28.79 × 78 =
29. 29.207 × 205 =
30. 30.87 × 86 =
31. 31.76 × 77 =
32. 32.399 × 393 =
33. 33.203 × 207 =
34. 34.399 × 393 =
35. 35.39 × 37 =
36. 36.77 × 79 =
37. 37.52 × 54 =
38. 38.499 × 498 =
39. 39.87 × 88 =
40. 40.46 × 47 =

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