Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 663 · 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. 1.66 × 68 =
2. 2.36 × 36 =
3. 3.23 × 22 =
4. 4.79 × 79 =
5. 5.198 × 199 =
6. 6.77 × 76 =
7. 7.297 × 296 =
8. 8.43 × 42 =
9. 9.92 × 92 =
10. 10.193 × 199 =
11. 11.92 × 92 =
12. 12.603 × 604 =
13. 13.31 × 33 =
14. 14.494 × 493 =
15. 15.36 × 38 =
16. 16.493 × 491 =
17. 17.51 × 52 =
18. 18.494 × 498 =
19. 19.397 × 397 =
20. 20.603 × 602 =
21. 21.509 × 504 =
22. 22.56 × 58 =
23. 23.394 × 399 =
24. 24.596 × 593 =
25. 25.494 × 491 =
26. 26.43 × 41 =
27. 27.17 × 18 =
28. 28.43 × 41 =
29. 29.602 × 608 =
30. 30.19 × 16 =
31. 31.609 × 604 =
32. 32.79 × 76 =
33. 33.603 × 606 =
34. 34.77 × 79 =
35. 35.47 × 47 =
36. 36.46 × 49 =
37. 37.43 × 43 =
38. 38.29 × 27 =
39. 39.16 × 19 =
40. 40.37 × 36 =

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