Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 446 · 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. 1.408 × 404 =
2. 2.19 × 17 =
3. 3.53 × 53 =
4. 4.84 × 82 =
5. 5.202 × 201 =
6. 6.199 × 193 =
7. 7.66 × 69 =
8. 8.198 × 197 =
9. 9.43 × 43 =
10. 10.78 × 76 =
11. 11.295 × 294 =
12. 12.199 × 197 =
13. 13.39 × 38 =
14. 14.22 × 24 =
15. 15.17 × 16 =
16. 16.199 × 199 =
17. 17.393 × 393 =
18. 18.609 × 607 =
19. 19.19 × 19 =
20. 20.51 × 53 =
21. 21.202 × 205 =
22. 22.598 × 599 =
23. 23.72 × 74 =
24. 24.81 × 84 =
25. 25.499 × 497 =
26. 26.53 × 53 =
27. 27.52 × 53 =
28. 28.598 × 596 =
29. 29.26 × 29 =
30. 30.88 × 89 =
31. 31.68 × 68 =
32. 32.23 × 22 =
33. 33.43 × 43 =
34. 34.38 × 37 =
35. 35.198 × 193 =
36. 36.56 × 56 =
37. 37.594 × 597 =
38. 38.38 × 38 =
39. 39.32 × 33 =
40. 40.51 × 54 =

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