Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 379 · 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. 1.73 × 71 =
2. 2.403 × 406 =
3. 3.74 × 71 =
4. 4.59 × 59 =
5. 5.495 × 492 =
6. 6.27 × 26 =
7. 7.67 × 67 =
8. 8.401 × 402 =
9. 9.57 × 57 =
10. 10.491 × 495 =
11. 11.87 × 89 =
12. 12.194 × 199 =
13. 13.497 × 498 =
14. 14.27 × 26 =
15. 15.31 × 34 =
16. 16.44 × 44 =
17. 17.199 × 196 =
18. 18.84 × 84 =
19. 19.597 × 597 =
20. 20.296 × 291 =
21. 21.392 × 393 =
22. 22.58 × 56 =
23. 23.72 × 73 =
24. 24.605 × 602 =
25. 25.604 × 609 =
26. 26.197 × 192 =
27. 27.497 × 493 =
28. 28.508 × 501 =
29. 29.41 × 43 =
30. 30.88 × 89 =
31. 31.495 × 494 =
32. 32.21 × 24 =
33. 33.41 × 43 =
34. 34.17 × 16 =
35. 35.23 × 22 =
36. 36.494 × 491 =
37. 37.39 × 39 =
38. 38.78 × 79 =
39. 39.81 × 81 =
40. 40.18 × 19 =

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