Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 105 · 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. 1.303 × 302 =
2. 2.594 × 598 =
3. 3.77 × 76 =
4. 4.196 × 192 =
5. 5.24 × 23 =
6. 6.79 × 79 =
7. 7.309 × 303 =
8. 8.68 × 67 =
9. 9.196 × 197 =
10. 10.204 × 204 =
11. 11.17 × 19 =
12. 12.307 × 306 =
13. 13.191 × 199 =
14. 14.39 × 37 =
15. 15.299 × 296 =
16. 16.395 × 395 =
17. 17.57 × 59 =
18. 18.609 × 604 =
19. 19.16 × 17 =
20. 20.301 × 303 =
21. 21.22 × 22 =
22. 22.206 × 204 =
23. 23.36 × 37 =
24. 24.88 × 86 =
25. 25.405 × 401 =
26. 26.26 × 28 =
27. 27.297 × 292 =
28. 28.594 × 591 =
29. 29.78 × 78 =
30. 30.204 × 202 =
31. 31.209 × 205 =
32. 32.199 × 199 =
33. 33.68 × 69 =
34. 34.71 × 73 =
35. 35.401 × 404 =
36. 36.89 × 86 =
37. 37.393 × 397 =
38. 38.74 × 72 =
39. 39.27 × 29 =
40. 40.68 × 69 =

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