Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 543 · 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. 1.31 × 31 =
2. 2.64 × 61 =
3. 3.199 × 191 =
4. 4.195 × 193 =
5. 5.72 × 72 =
6. 6.88 × 86 =
7. 7.501 × 501 =
8. 8.62 × 63 =
9. 9.404 × 409 =
10. 10.497 × 494 =
11. 11.79 × 79 =
12. 12.68 × 67 =
13. 13.597 × 591 =
14. 14.47 × 48 =
15. 15.58 × 58 =
16. 16.299 × 295 =
17. 17.68 × 68 =
18. 18.56 × 59 =
19. 19.197 × 197 =
20. 20.399 × 396 =
21. 21.499 × 499 =
22. 22.18 × 16 =
23. 23.195 × 193 =
24. 24.58 × 58 =
25. 25.297 × 299 =
26. 26.608 × 603 =
27. 27.31 × 31 =
28. 28.503 × 506 =
29. 29.73 × 73 =
30. 30.72 × 71 =
31. 31.39 × 38 =
32. 32.24 × 24 =
33. 33.396 × 398 =
34. 34.305 × 303 =
35. 35.205 × 207 =
36. 36.607 × 606 =
37. 37.204 × 208 =
38. 38.606 × 609 =
39. 39.39 × 36 =
40. 40.48 × 48 =

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