Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 898 · 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. 1.57 × 59 =
2. 2.397 × 398 =
3. 3.54 × 51 =
4. 4.18 × 18 =
5. 5.84 × 83 =
6. 6.22 × 21 =
7. 7.506 × 505 =
8. 8.202 × 203 =
9. 9.67 × 66 =
10. 10.503 × 507 =
11. 11.18 × 19 =
12. 12.32 × 33 =
13. 13.46 × 48 =
14. 14.61 × 61 =
15. 15.36 × 37 =
16. 16.46 × 46 =
17. 17.602 × 604 =
18. 18.29 × 29 =
19. 19.33 × 31 =
20. 20.51 × 53 =
21. 21.87 × 87 =
22. 22.33 × 33 =
23. 23.598 × 591 =
24. 24.499 × 496 =
25. 25.492 × 491 =
26. 26.23 × 24 =
27. 27.92 × 91 =
28. 28.78 × 78 =
29. 29.401 × 401 =
30. 30.302 × 302 =
31. 31.198 × 198 =
32. 32.499 × 491 =
33. 33.89 × 87 =
34. 34.608 × 609 =
35. 35.32 × 34 =
36. 36.497 × 499 =
37. 37.502 × 502 =
38. 38.501 × 503 =
39. 39.84 × 82 =
40. 40.295 × 299 =

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