Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 778 · 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. 1.38 × 39 =
2. 2.298 × 297 =
3. 3.498 × 493 =
4. 4.608 × 605 =
5. 5.506 × 502 =
6. 6.494 × 497 =
7. 7.305 × 305 =
8. 8.63 × 64 =
9. 9.599 × 599 =
10. 10.91 × 94 =
11. 11.408 × 403 =
12. 12.192 × 199 =
13. 13.21 × 22 =
14. 14.32 × 31 =
15. 15.82 × 82 =
16. 16.398 × 391 =
17. 17.409 × 407 =
18. 18.34 × 31 =
19. 19.194 × 198 =
20. 20.44 × 41 =
21. 21.91 × 92 =
22. 22.298 × 298 =
23. 23.603 × 602 =
24. 24.86 × 89 =
25. 25.206 × 202 =
26. 26.62 × 64 =
27. 27.91 × 91 =
28. 28.602 × 602 =
29. 29.492 × 498 =
30. 30.306 × 309 =
31. 31.86 × 88 =
32. 32.19 × 16 =
33. 33.501 × 506 =
34. 34.72 × 72 =
35. 35.499 × 493 =
36. 36.59 × 57 =
37. 37.31 × 32 =
38. 38.27 × 29 =
39. 39.202 × 204 =
40. 40.595 × 591 =

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