Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 637 · 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. 2.21 × 22 =
3. 3.22 × 21 =
4. 4.61 × 61 =
5. 5.24 × 21 =
6. 6.402 × 402 =
7. 7.81 × 81 =
8. 8.602 × 605 =
9. 9.78 × 78 =
10. 10.27 × 26 =
11. 11.305 × 302 =
12. 12.39 × 36 =
13. 13.44 × 42 =
14. 14.41 × 43 =
15. 15.69 × 67 =
16. 16.42 × 41 =
17. 17.63 × 62 =
18. 18.49 × 49 =
19. 19.191 × 193 =
20. 20.303 × 309 =
21. 21.192 × 196 =
22. 22.606 × 605 =
23. 23.494 × 496 =
24. 24.303 × 305 =
25. 25.596 × 594 =
26. 26.34 × 33 =
27. 27.398 × 396 =
28. 28.38 × 38 =
29. 29.36 × 36 =
30. 30.194 × 194 =
31. 31.49 × 48 =
32. 32.405 × 401 =
33. 33.593 × 591 =
34. 34.58 × 56 =
35. 35.305 × 304 =
36. 36.34 × 34 =
37. 37.395 × 393 =
38. 38.74 × 71 =
39. 39.33 × 31 =
40. 40.21 × 23 =

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