Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 417 · 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. 1.41 × 44 =
2. 2.499 × 491 =
3. 3.59 × 57 =
4. 4.493 × 499 =
5. 5.26 × 29 =
6. 6.203 × 205 =
7. 7.604 × 606 =
8. 8.49 × 48 =
9. 9.36 × 36 =
10. 10.197 × 195 =
11. 11.204 × 202 =
12. 12.24 × 22 =
13. 13.196 × 194 =
14. 14.36 × 37 =
15. 15.34 × 32 =
16. 16.293 × 297 =
17. 17.63 × 62 =
18. 18.57 × 57 =
19. 19.94 × 91 =
20. 20.32 × 33 =
21. 21.26 × 29 =
22. 22.594 × 597 =
23. 23.51 × 51 =
24. 24.505 × 507 =
25. 25.301 × 303 =
26. 26.193 × 196 =
27. 27.298 × 298 =
28. 28.504 × 502 =
29. 29.193 × 191 =
30. 30.304 × 302 =
31. 31.602 × 607 =
32. 32.56 × 58 =
33. 33.28 × 29 =
34. 34.296 × 299 =
35. 35.197 × 194 =
36. 36.53 × 52 =
37. 37.39 × 37 =
38. 38.63 × 62 =
39. 39.604 × 604 =
40. 40.22 × 22 =

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