Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 765 · 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. 1.48 × 47 =
2. 2.16 × 18 =
3. 3.293 × 291 =
4. 4.77 × 79 =
5. 5.51 × 51 =
6. 6.56 × 59 =
7. 7.57 × 57 =
8. 8.195 × 199 =
9. 9.78 × 79 =
10. 10.39 × 39 =
11. 11.595 × 596 =
12. 12.293 × 299 =
13. 13.84 × 81 =
14. 14.501 × 506 =
15. 15.391 × 395 =
16. 16.42 × 42 =
17. 17.44 × 41 =
18. 18.301 × 309 =
19. 19.69 × 69 =
20. 20.76 × 77 =
21. 21.608 × 606 =
22. 22.391 × 395 =
23. 23.191 × 192 =
24. 24.402 × 408 =
25. 25.47 × 48 =
26. 26.77 × 78 =
27. 27.193 × 196 =
28. 28.397 × 394 =
29. 29.31 × 31 =
30. 30.594 × 597 =
31. 31.392 × 391 =
32. 32.506 × 506 =
33. 33.31 × 31 =
34. 34.594 × 599 =
35. 35.77 × 78 =
36. 36.39 × 38 =
37. 37.31 × 33 =
38. 38.47 × 48 =
39. 39.398 × 395 =
40. 40.52 × 51 =

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