Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 846 · 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. 1.292 × 298 =
2. 2.31 × 34 =
3. 3.203 × 202 =
4. 4.86 × 88 =
5. 5.79 × 76 =
6. 6.69 × 66 =
7. 7.398 × 399 =
8. 8.84 × 81 =
9. 9.69 × 67 =
10. 10.398 × 395 =
11. 11.24 × 21 =
12. 12.603 × 604 =
13. 13.307 × 307 =
14. 14.77 × 79 =
15. 15.73 × 73 =
16. 16.87 × 89 =
17. 17.38 × 39 =
18. 18.81 × 84 =
19. 19.505 × 507 =
20. 20.195 × 193 =
21. 21.397 × 393 =
22. 22.599 × 594 =
23. 23.197 × 199 =
24. 24.81 × 82 =
25. 25.41 × 41 =
26. 26.202 × 202 =
27. 27.497 × 493 =
28. 28.292 × 298 =
29. 29.396 × 398 =
30. 30.498 × 497 =
31. 31.303 × 303 =
32. 32.198 × 194 =
33. 33.496 × 496 =
34. 34.68 × 69 =
35. 35.306 × 307 =
36. 36.206 × 204 =
37. 37.32 × 31 =
38. 38.294 × 297 =
39. 39.609 × 609 =
40. 40.292 × 297 =

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