Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 256 · 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 × 54 =
2. 2.302 × 305 =
3. 3.199 × 192 =
4. 4.607 × 609 =
5. 5.59 × 59 =
6. 6.93 × 92 =
7. 7.61 × 61 =
8. 8.77 × 79 =
9. 9.74 × 74 =
10. 10.408 × 401 =
11. 11.399 × 398 =
12. 12.62 × 61 =
13. 13.73 × 74 =
14. 14.78 × 79 =
15. 15.33 × 33 =
16. 16.78 × 79 =
17. 17.596 × 597 =
18. 18.408 × 407 =
19. 19.66 × 69 =
20. 20.207 × 203 =
21. 21.34 × 31 =
22. 22.493 × 496 =
23. 23.94 × 92 =
24. 24.292 × 293 =
25. 25.39 × 36 =
26. 26.72 × 74 =
27. 27.402 × 402 =
28. 28.292 × 292 =
29. 29.504 × 501 =
30. 30.19 × 19 =
31. 31.56 × 57 =
32. 32.498 × 494 =
33. 33.202 × 207 =
34. 34.16 × 16 =
35. 35.32 × 32 =
36. 36.491 × 496 =
37. 37.67 × 68 =
38. 38.38 × 37 =
39. 39.599 × 598 =
40. 40.18 × 18 =

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