Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 262 · 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. 1.309 × 303 =
2. 2.64 × 61 =
3. 3.63 × 64 =
4. 4.295 × 293 =
5. 5.406 × 409 =
6. 6.492 × 494 =
7. 7.205 × 206 =
8. 8.84 × 84 =
9. 9.603 × 608 =
10. 10.291 × 294 =
11. 11.599 × 596 =
12. 12.293 × 299 =
13. 13.21 × 21 =
14. 14.23 × 22 =
15. 15.89 × 86 =
16. 16.36 × 39 =
17. 17.29 × 29 =
18. 18.594 × 598 =
19. 19.39 × 37 =
20. 20.404 × 404 =
21. 21.404 × 405 =
22. 22.202 × 207 =
23. 23.79 × 79 =
24. 24.21 × 23 =
25. 25.91 × 93 =
26. 26.601 × 608 =
27. 27.48 × 46 =
28. 28.49 × 48 =
29. 29.207 × 205 =
30. 30.86 × 87 =
31. 31.405 × 407 =
32. 32.87 × 86 =
33. 33.32 × 31 =
34. 34.204 × 207 =
35. 35.599 × 599 =
36. 36.198 × 195 =
37. 37.58 × 56 =
38. 38.32 × 31 =
39. 39.208 × 202 =
40. 40.31 × 33 =

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