Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 447 · 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. 1.392 × 393 =
2. 2.492 × 496 =
3. 3.204 × 209 =
4. 4.18 × 19 =
5. 5.506 × 506 =
6. 6.83 × 81 =
7. 7.88 × 87 =
8. 8.501 × 505 =
9. 9.195 × 191 =
10. 10.198 × 198 =
11. 11.197 × 194 =
12. 12.28 × 26 =
13. 13.306 × 301 =
14. 14.593 × 592 =
15. 15.42 × 41 =
16. 16.205 × 206 =
17. 17.38 × 37 =
18. 18.88 × 89 =
19. 19.53 × 53 =
20. 20.44 × 41 =
21. 21.29 × 29 =
22. 22.64 × 62 =
23. 23.61 × 62 =
24. 24.501 × 506 =
25. 25.301 × 309 =
26. 26.44 × 43 =
27. 27.42 × 41 =
28. 28.81 × 84 =
29. 29.592 × 598 =
30. 30.61 × 62 =
31. 31.203 × 209 =
32. 32.499 × 496 =
33. 33.24 × 24 =
34. 34.609 × 602 =
35. 35.397 × 399 =
36. 36.41 × 44 =
37. 37.498 × 493 =
38. 38.52 × 54 =
39. 39.46 × 48 =
40. 40.392 × 394 =

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