Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 850 · 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. 1.67 × 68 =
2. 2.394 × 391 =
3. 3.297 × 297 =
4. 4.493 × 494 =
5. 5.39 × 38 =
6. 6.591 × 595 =
7. 7.42 × 41 =
8. 8.59 × 58 =
9. 9.596 × 597 =
10. 10.298 × 293 =
11. 11.57 × 57 =
12. 12.305 × 304 =
13. 13.67 × 68 =
14. 14.198 × 197 =
15. 15.34 × 33 =
16. 16.17 × 17 =
17. 17.305 × 302 =
18. 18.293 × 294 =
19. 19.303 × 308 =
20. 20.593 × 599 =
21. 21.93 × 93 =
22. 22.295 × 299 =
23. 23.292 × 292 =
24. 24.22 × 21 =
25. 25.509 × 502 =
26. 26.204 × 202 =
27. 27.53 × 52 =
28. 28.198 × 195 =
29. 29.37 × 36 =
30. 30.504 × 502 =
31. 31.16 × 19 =
32. 32.408 × 407 =
33. 33.94 × 91 =
34. 34.597 × 599 =
35. 35.495 × 498 =
36. 36.51 × 54 =
37. 37.59 × 57 =
38. 38.391 × 398 =
39. 39.78 × 77 =
40. 40.409 × 409 =

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