Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 270 · 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. 1.508 × 509 =
2. 2.301 × 301 =
3. 3.91 × 93 =
4. 4.296 × 291 =
5. 5.193 × 197 =
6. 6.88 × 86 =
7. 7.56 × 58 =
8. 8.409 × 409 =
9. 9.59 × 56 =
10. 10.203 × 205 =
11. 11.193 × 199 =
12. 12.199 × 191 =
13. 13.89 × 87 =
14. 14.53 × 54 =
15. 15.79 × 76 =
16. 16.197 × 199 =
17. 17.398 × 397 =
18. 18.41 × 41 =
19. 19.39 × 36 =
20. 20.291 × 298 =
21. 21.53 × 54 =
22. 22.51 × 52 =
23. 23.598 × 591 =
24. 24.76 × 76 =
25. 25.403 × 406 =
26. 26.33 × 31 =
27. 27.499 × 495 =
28. 28.91 × 91 =
29. 29.68 × 69 =
30. 30.295 × 294 =
31. 31.41 × 44 =
32. 32.592 × 599 =
33. 33.499 × 493 =
34. 34.606 × 608 =
35. 35.193 × 196 =
36. 36.492 × 497 =
37. 37.53 × 54 =
38. 38.34 × 31 =
39. 39.399 × 399 =
40. 40.503 × 503 =

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