Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 568 · 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. 1.51 × 53 =
2. 2.92 × 94 =
3. 3.198 × 193 =
4. 4.83 × 82 =
5. 5.201 × 202 =
6. 6.496 × 492 =
7. 7.16 × 16 =
8. 8.296 × 293 =
9. 9.67 × 67 =
10. 10.199 × 191 =
11. 11.195 × 192 =
12. 12.68 × 67 =
13. 13.64 × 64 =
14. 14.62 × 61 =
15. 15.63 × 64 =
16. 16.397 × 399 =
17. 17.303 × 303 =
18. 18.81 × 81 =
19. 19.202 × 209 =
20. 20.16 × 19 =
21. 21.604 × 605 =
22. 22.292 × 295 =
23. 23.292 × 297 =
24. 24.596 × 591 =
25. 25.88 × 89 =
26. 26.307 × 301 =
27. 27.596 × 591 =
28. 28.205 × 205 =
29. 29.203 × 201 =
30. 30.191 × 198 =
31. 31.592 × 594 =
32. 32.52 × 53 =
33. 33.78 × 78 =
34. 34.83 × 84 =
35. 35.43 × 41 =
36. 36.47 × 49 =
37. 37.201 × 207 =
38. 38.307 × 305 =
39. 39.396 × 392 =
40. 40.44 × 44 =

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