Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 288 · 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. 2.299 × 295 =
3. 3.88 × 86 =
4. 4.51 × 52 =
5. 5.56 × 58 =
6. 6.302 × 307 =
7. 7.31 × 31 =
8. 8.48 × 49 =
9. 9.299 × 293 =
10. 10.81 × 82 =
11. 11.54 × 54 =
12. 12.69 × 67 =
13. 13.496 × 496 =
14. 14.49 × 46 =
15. 15.208 × 202 =
16. 16.49 × 48 =
17. 17.87 × 89 =
18. 18.409 × 407 =
19. 19.37 × 36 =
20. 20.54 × 54 =
21. 21.401 × 405 =
22. 22.17 × 19 =
23. 23.33 × 31 =
24. 24.599 × 591 =
25. 25.19 × 16 =
26. 26.76 × 79 =
27. 27.68 × 67 =
28. 28.24 × 23 =
29. 29.79 × 78 =
30. 30.192 × 191 =
31. 31.16 × 16 =
32. 32.83 × 81 =
33. 33.42 × 42 =
34. 34.46 × 46 =
35. 35.202 × 209 =
36. 36.394 × 393 =
37. 37.408 × 404 =
38. 38.503 × 509 =
39. 39.49 × 47 =
40. 40.309 × 308 =

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