Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 716 · 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. 1.398 × 399 =
2. 2.403 × 401 =
3. 3.604 × 601 =
4. 4.79 × 76 =
5. 5.394 × 392 =
6. 6.77 × 77 =
7. 7.61 × 61 =
8. 8.92 × 94 =
9. 9.28 × 27 =
10. 10.36 × 38 =
11. 11.36 × 36 =
12. 12.196 × 192 =
13. 13.401 × 407 =
14. 14.293 × 295 =
15. 15.305 × 303 =
16. 16.195 × 193 =
17. 17.499 × 498 =
18. 18.207 × 209 =
19. 19.499 × 499 =
20. 20.298 × 297 =
21. 21.49 × 46 =
22. 22.51 × 54 =
23. 23.81 × 81 =
24. 24.509 × 509 =
25. 25.72 × 71 =
26. 26.309 × 307 =
27. 27.502 × 502 =
28. 28.405 × 407 =
29. 29.18 × 16 =
30. 30.62 × 64 =
31. 31.506 × 502 =
32. 32.198 × 199 =
33. 33.198 × 199 =
34. 34.24 × 24 =
35. 35.297 × 296 =
36. 36.94 × 93 =
37. 37.507 × 507 =
38. 38.54 × 51 =
39. 39.42 × 43 =
40. 40.603 × 601 =

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