Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 619 · 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. 1.498 × 497 =
2. 2.197 × 197 =
3. 3.605 × 603 =
4. 4.73 × 73 =
5. 5.48 × 46 =
6. 6.291 × 295 =
7. 7.59 × 59 =
8. 8.204 × 209 =
9. 9.29 × 26 =
10. 10.36 × 37 =
11. 11.52 × 52 =
12. 12.602 × 607 =
13. 13.51 × 52 =
14. 14.602 × 604 =
15. 15.84 × 81 =
16. 16.191 × 195 =
17. 17.63 × 64 =
18. 18.36 × 38 =
19. 19.77 × 79 =
20. 20.602 × 607 =
21. 21.72 × 71 =
22. 22.507 × 503 =
23. 23.61 × 62 =
24. 24.41 × 43 =
25. 25.401 × 401 =
26. 26.602 × 606 =
27. 27.66 × 69 =
28. 28.37 × 39 =
29. 29.57 × 56 =
30. 30.393 × 394 =
31. 31.52 × 52 =
32. 32.198 × 191 =
33. 33.499 × 492 =
34. 34.44 × 42 =
35. 35.58 × 58 =
36. 36.504 × 501 =
37. 37.88 × 88 =
38. 38.205 × 204 =
39. 39.209 × 201 =
40. 40.19 × 19 =

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