Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 377 · 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. 1.87 × 89 =
2. 2.17 × 19 =
3. 3.498 × 498 =
4. 4.66 × 67 =
5. 5.67 × 67 =
6. 6.392 × 395 =
7. 7.495 × 494 =
8. 8.91 × 94 =
9. 9.33 × 31 =
10. 10.609 × 605 =
11. 11.296 × 293 =
12. 12.73 × 71 =
13. 13.497 × 499 =
14. 14.29 × 26 =
15. 15.16 × 19 =
16. 16.58 × 58 =
17. 17.87 × 86 =
18. 18.38 × 39 =
19. 19.91 × 92 =
20. 20.302 × 303 =
21. 21.22 × 21 =
22. 22.501 × 509 =
23. 23.508 × 508 =
24. 24.491 × 494 =
25. 25.47 × 47 =
26. 26.36 × 39 =
27. 27.17 × 18 =
28. 28.59 × 59 =
29. 29.203 × 201 =
30. 30.58 × 59 =
31. 31.69 × 66 =
32. 32.88 × 89 =
33. 33.29 × 26 =
34. 34.54 × 52 =
35. 35.19 × 16 =
36. 36.88 × 86 =
37. 37.496 × 491 =
38. 38.87 × 89 =
39. 39.18 × 16 =
40. 40.498 × 491 =

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