Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 388 · 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. 1.607 × 609 =
2. 2.71 × 71 =
3. 3.52 × 51 =
4. 4.69 × 69 =
5. 5.51 × 52 =
6. 6.81 × 84 =
7. 7.21 × 24 =
8. 8.69 × 67 =
9. 9.191 × 195 =
10. 10.31 × 34 =
11. 11.44 × 42 =
12. 12.306 × 303 =
13. 13.604 × 601 =
14. 14.77 × 77 =
15. 15.299 × 297 =
16. 16.397 × 397 =
17. 17.79 × 77 =
18. 18.503 × 501 =
19. 19.67 × 66 =
20. 20.491 × 495 =
21. 21.199 × 193 =
22. 22.74 × 74 =
23. 23.77 × 78 =
24. 24.509 × 508 =
25. 25.401 × 401 =
26. 26.397 × 399 =
27. 27.29 × 29 =
28. 28.16 × 16 =
29. 29.398 × 395 =
30. 30.19 × 19 =
31. 31.29 × 28 =
32. 32.56 × 56 =
33. 33.81 × 82 =
34. 34.78 × 76 =
35. 35.496 × 496 =
36. 36.293 × 299 =
37. 37.52 × 51 =
38. 38.86 × 89 =
39. 39.19 × 18 =
40. 40.54 × 51 =

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