Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 646 · 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. 1.84 × 84 =
2. 2.18 × 17 =
3. 3.604 × 606 =
4. 4.24 × 24 =
5. 5.41 × 44 =
6. 6.47 × 49 =
7. 7.16 × 18 =
8. 8.203 × 201 =
9. 9.28 × 26 =
10. 10.208 × 201 =
11. 11.591 × 599 =
12. 12.19 × 16 =
13. 13.22 × 22 =
14. 14.597 × 595 =
15. 15.295 × 299 =
16. 16.32 × 34 =
17. 17.56 × 56 =
18. 18.17 × 16 =
19. 19.74 × 72 =
20. 20.197 × 199 =
21. 21.37 × 38 =
22. 22.406 × 405 =
23. 23.597 × 593 =
24. 24.601 × 607 =
25. 25.67 × 67 =
26. 26.499 × 491 =
27. 27.21 × 21 =
28. 28.42 × 44 =
29. 29.402 × 403 =
30. 30.601 × 608 =
31. 31.37 × 38 =
32. 32.23 × 22 =
33. 33.294 × 299 =
34. 34.506 × 504 =
35. 35.409 × 403 =
36. 36.19 × 16 =
37. 37.56 × 59 =
38. 38.44 × 41 =
39. 39.88 × 86 =
40. 40.199 × 191 =

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