Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 51 · 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. 1.402 × 405 =
2. 2.603 × 601 =
3. 3.201 × 208 =
4. 4.72 × 74 =
5. 5.301 × 306 =
6. 6.53 × 54 =
7. 7.66 × 67 =
8. 8.39 × 39 =
9. 9.299 × 291 =
10. 10.498 × 497 =
11. 11.41 × 42 =
12. 12.17 × 17 =
13. 13.509 × 502 =
14. 14.308 × 302 =
15. 15.56 × 56 =
16. 16.595 × 598 =
17. 17.33 × 31 =
18. 18.33 × 33 =
19. 19.56 × 59 =
20. 20.67 × 66 =
21. 21.399 × 398 =
22. 22.24 × 24 =
23. 23.399 × 395 =
24. 24.91 × 94 =
25. 25.17 × 19 =
26. 26.602 × 602 =
27. 27.598 × 591 =
28. 28.93 × 91 =
29. 29.593 × 599 =
30. 30.58 × 57 =
31. 31.68 × 69 =
32. 32.39 × 37 =
33. 33.496 × 494 =
34. 34.598 × 599 =
35. 35.91 × 92 =
36. 36.193 × 195 =
37. 37.197 × 199 =
38. 38.301 × 309 =
39. 39.61 × 64 =
40. 40.201 × 201 =

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