Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 172 · 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. 1.78 × 77 =
2. 2.303 × 308 =
3. 3.71 × 74 =
4. 4.62 × 62 =
5. 5.197 × 195 =
6. 6.38 × 38 =
7. 7.17 × 17 =
8. 8.496 × 494 =
9. 9.597 × 598 =
10. 10.59 × 59 =
11. 11.91 × 93 =
12. 12.308 × 309 =
13. 13.56 × 57 =
14. 14.199 × 199 =
15. 15.74 × 72 =
16. 16.51 × 54 =
17. 17.54 × 53 =
18. 18.83 × 83 =
19. 19.78 × 76 =
20. 20.69 × 66 =
21. 21.36 × 38 =
22. 22.73 × 72 =
23. 23.61 × 61 =
24. 24.209 × 204 =
25. 25.602 × 601 =
26. 26.61 × 64 =
27. 27.42 × 42 =
28. 28.395 × 391 =
29. 29.36 × 36 =
30. 30.83 × 81 =
31. 31.81 × 84 =
32. 32.497 × 492 =
33. 33.495 × 492 =
34. 34.76 × 76 =
35. 35.72 × 74 =
36. 36.295 × 291 =
37. 37.73 × 71 =
38. 38.396 × 391 =
39. 39.87 × 87 =
40. 40.397 × 395 =

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