Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 644 · 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. 1.502 × 505 =
2. 2.17 × 16 =
3. 3.204 × 208 =
4. 4.87 × 89 =
5. 5.599 × 593 =
6. 6.204 × 201 =
7. 7.395 × 398 =
8. 8.291 × 295 =
9. 9.39 × 36 =
10. 10.27 × 29 =
11. 11.207 × 207 =
12. 12.608 × 603 =
13. 13.302 × 306 =
14. 14.31 × 31 =
15. 15.592 × 597 =
16. 16.66 × 67 =
17. 17.301 × 301 =
18. 18.86 × 86 =
19. 19.31 × 32 =
20. 20.47 × 46 =
21. 21.206 × 208 =
22. 22.44 × 43 =
23. 23.26 × 26 =
24. 24.73 × 74 =
25. 25.195 × 199 =
26. 26.64 × 61 =
27. 27.33 × 32 =
28. 28.499 × 495 =
29. 29.31 × 31 =
30. 30.42 × 44 =
31. 31.193 × 194 =
32. 32.53 × 53 =
33. 33.607 × 609 =
34. 34.202 × 203 =
35. 35.497 × 499 =
36. 36.21 × 23 =
37. 37.592 × 597 =
38. 38.67 × 69 =
39. 39.37 × 38 =
40. 40.89 × 86 =

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