Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 700 · 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. 1.49 × 48 =
2. 2.403 × 402 =
3. 3.607 × 605 =
4. 4.493 × 491 =
5. 5.87 × 86 =
6. 6.506 × 501 =
7. 7.209 × 207 =
8. 8.594 × 595 =
9. 9.21 × 23 =
10. 10.19 × 18 =
11. 11.42 × 44 =
12. 12.88 × 89 =
13. 13.66 × 68 =
14. 14.18 × 18 =
15. 15.89 × 87 =
16. 16.28 × 29 =
17. 17.48 × 47 =
18. 18.89 × 88 =
19. 19.16 × 17 =
20. 20.491 × 497 =
21. 21.301 × 301 =
22. 22.509 × 508 =
23. 23.56 × 58 =
24. 24.292 × 299 =
25. 25.608 × 606 =
26. 26.208 × 201 =
27. 27.78 × 77 =
28. 28.66 × 69 =
29. 29.305 × 302 =
30. 30.38 × 39 =
31. 31.44 × 44 =
32. 32.602 × 606 =
33. 33.407 × 402 =
34. 34.94 × 91 =
35. 35.396 × 395 =
36. 36.87 × 86 =
37. 37.191 × 198 =
38. 38.403 × 403 =
39. 39.31 × 34 =
40. 40.61 × 62 =

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