Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 570 · 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. 1.39 × 38 =
2. 2.209 × 202 =
3. 3.93 × 91 =
4. 4.403 × 403 =
5. 5.31 × 33 =
6. 6.59 × 57 =
7. 7.81 × 81 =
8. 8.29 × 26 =
9. 9.202 × 203 =
10. 10.61 × 64 =
11. 11.58 × 56 =
12. 12.392 × 392 =
13. 13.23 × 21 =
14. 14.66 × 67 =
15. 15.198 × 192 =
16. 16.191 × 193 =
17. 17.405 × 401 =
18. 18.195 × 196 =
19. 19.505 × 507 =
20. 20.36 × 39 =
21. 21.26 × 26 =
22. 22.32 × 32 =
23. 23.72 × 72 =
24. 24.64 × 64 =
25. 25.67 × 68 =
26. 26.51 × 54 =
27. 27.18 × 16 =
28. 28.307 × 304 =
29. 29.22 × 21 =
30. 30.498 × 492 =
31. 31.596 × 593 =
32. 32.63 × 62 =
33. 33.47 × 49 =
34. 34.391 × 397 =
35. 35.89 × 89 =
36. 36.209 × 203 =
37. 37.61 × 64 =
38. 38.392 × 398 =
39. 39.74 × 73 =
40. 40.304 × 304 =

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