Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 971 · 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. 1.51 × 51 =
2. 2.198 × 196 =
3. 3.61 × 62 =
4. 4.34 × 34 =
5. 5.48 × 47 =
6. 6.305 × 303 =
7. 7.52 × 53 =
8. 8.47 × 49 =
9. 9.393 × 396 =
10. 10.505 × 506 =
11. 11.92 × 91 =
12. 12.66 × 68 =
13. 13.54 × 51 =
14. 14.34 × 33 =
15. 15.93 × 93 =
16. 16.42 × 42 =
17. 17.508 × 506 =
18. 18.609 × 606 =
19. 19.204 × 204 =
20. 20.49 × 46 =
21. 21.64 × 61 =
22. 22.292 × 297 =
23. 23.609 × 605 =
24. 24.67 × 66 =
25. 25.608 × 606 =
26. 26.61 × 64 =
27. 27.203 × 208 =
28. 28.33 × 32 =
29. 29.505 × 501 =
30. 30.79 × 77 =
31. 31.397 × 394 =
32. 32.507 × 508 =
33. 33.58 × 56 =
34. 34.26 × 26 =
35. 35.401 × 409 =
36. 36.305 × 302 =
37. 37.54 × 53 =
38. 38.78 × 76 =
39. 39.204 × 202 =
40. 40.398 × 399 =

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