Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 884 · 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. 1.91 × 93 =
2. 2.201 × 206 =
3. 3.199 × 192 =
4. 4.203 × 202 =
5. 5.63 × 61 =
6. 6.397 × 397 =
7. 7.395 × 395 =
8. 8.507 × 507 =
9. 9.306 × 308 =
10. 10.395 × 399 =
11. 11.294 × 295 =
12. 12.93 × 94 =
13. 13.595 × 599 =
14. 14.292 × 299 =
15. 15.71 × 71 =
16. 16.299 × 297 =
17. 17.22 × 22 =
18. 18.604 × 603 =
19. 19.31 × 33 =
20. 20.298 × 294 =
21. 21.409 × 409 =
22. 22.46 × 49 =
23. 23.594 × 598 =
24. 24.594 × 593 =
25. 25.78 × 78 =
26. 26.299 × 295 =
27. 27.199 × 198 =
28. 28.73 × 72 =
29. 29.191 × 195 =
30. 30.293 × 295 =
31. 31.27 × 28 =
32. 32.207 × 201 =
33. 33.501 × 507 =
34. 34.209 × 201 =
35. 35.206 × 201 =
36. 36.17 × 18 =
37. 37.304 × 307 =
38. 38.192 × 198 =
39. 39.596 × 593 =
40. 40.597 × 594 =

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