Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 618 · 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. 1.599 × 599 =
2. 2.44 × 44 =
3. 3.17 × 17 =
4. 4.499 × 498 =
5. 5.594 × 599 =
6. 6.202 × 202 =
7. 7.396 × 397 =
8. 8.47 × 46 =
9. 9.34 × 31 =
10. 10.44 × 42 =
11. 11.41 × 44 =
12. 12.16 × 18 =
13. 13.87 × 87 =
14. 14.17 × 18 =
15. 15.92 × 92 =
16. 16.298 × 293 =
17. 17.32 × 31 =
18. 18.22 × 24 =
19. 19.48 × 48 =
20. 20.606 × 605 =
21. 21.46 × 47 =
22. 22.408 × 407 =
23. 23.406 × 402 =
24. 24.204 × 201 =
25. 25.59 × 56 =
26. 26.498 × 493 =
27. 27.591 × 598 =
28. 28.27 × 26 =
29. 29.594 × 593 =
30. 30.81 × 83 =
31. 31.594 × 595 =
32. 32.62 × 62 =
33. 33.501 × 509 =
34. 34.32 × 31 =
35. 35.33 × 32 =
36. 36.504 × 505 =
37. 37.81 × 81 =
38. 38.301 × 307 =
39. 39.21 × 23 =
40. 40.66 × 68 =

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