Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 847 · 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. 1.503 × 507 =
2. 2.403 × 401 =
3. 3.202 × 209 =
4. 4.23 × 21 =
5. 5.598 × 597 =
6. 6.51 × 53 =
7. 7.207 × 206 =
8. 8.68 × 68 =
9. 9.397 × 394 =
10. 10.64 × 61 =
11. 11.202 × 208 =
12. 12.43 × 41 =
13. 13.72 × 71 =
14. 14.19 × 19 =
15. 15.61 × 61 =
16. 16.59 × 58 =
17. 17.26 × 26 =
18. 18.301 × 304 =
19. 19.306 × 302 =
20. 20.53 × 51 =
21. 21.204 × 204 =
22. 22.32 × 32 =
23. 23.68 × 68 =
24. 24.206 × 209 =
25. 25.77 × 77 =
26. 26.294 × 299 =
27. 27.32 × 32 =
28. 28.19 × 17 =
29. 29.192 × 195 =
30. 30.74 × 73 =
31. 31.18 × 19 =
32. 32.47 × 46 =
33. 33.89 × 86 =
34. 34.495 × 499 =
35. 35.93 × 92 =
36. 36.202 × 201 =
37. 37.198 × 195 =
38. 38.33 × 33 =
39. 39.398 × 392 =
40. 40.69 × 66 =

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