Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 907 · 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. 1.42 × 41 =
2. 2.491 × 493 =
3. 3.495 × 497 =
4. 4.504 × 504 =
5. 5.63 × 63 =
6. 6.19 × 17 =
7. 7.509 × 508 =
8. 8.84 × 82 =
9. 9.36 × 39 =
10. 10.72 × 74 =
11. 11.71 × 72 =
12. 12.42 × 42 =
13. 13.38 × 39 =
14. 14.28 × 29 =
15. 15.57 × 59 =
16. 16.204 × 208 =
17. 17.26 × 29 =
18. 18.604 × 608 =
19. 19.39 × 36 =
20. 20.84 × 82 =
21. 21.93 × 93 =
22. 22.48 × 48 =
23. 23.43 × 43 =
24. 24.84 × 82 =
25. 25.17 × 16 =
26. 26.503 × 506 =
27. 27.44 × 42 =
28. 28.208 × 203 =
29. 29.49 × 47 =
30. 30.498 × 492 =
31. 31.199 × 196 =
32. 32.56 × 59 =
33. 33.19 × 18 =
34. 34.84 × 84 =
35. 35.401 × 409 =
36. 36.399 × 397 =
37. 37.399 × 393 =
38. 38.91 × 92 =
39. 39.37 × 38 =
40. 40.18 × 17 =

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