Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 61 · 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. 1.198 × 199 =
2. 2.599 × 591 =
3. 3.81 × 81 =
4. 4.77 × 78 =
5. 5.305 × 301 =
6. 6.39 × 39 =
7. 7.71 × 74 =
8. 8.46 × 49 =
9. 9.48 × 48 =
10. 10.409 × 402 =
11. 11.92 × 94 =
12. 12.39 × 36 =
13. 13.391 × 392 =
14. 14.42 × 42 =
15. 15.79 × 77 =
16. 16.31 × 34 =
17. 17.53 × 52 =
18. 18.294 × 299 =
19. 19.19 × 19 =
20. 20.397 × 392 =
21. 21.49 × 48 =
22. 22.302 × 304 =
23. 23.206 × 208 =
24. 24.298 × 293 =
25. 25.31 × 34 =
26. 26.31 × 34 =
27. 27.58 × 59 =
28. 28.604 × 605 =
29. 29.19 × 16 =
30. 30.72 × 74 =
31. 31.306 × 302 =
32. 32.297 × 299 =
33. 33.46 × 48 =
34. 34.392 × 398 =
35. 35.192 × 192 =
36. 36.67 × 67 =
37. 37.208 × 205 =
38. 38.77 × 77 =
39. 39.495 × 497 =
40. 40.598 × 591 =

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