Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 358 · 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. 1.605 × 605 =
2. 2.29 × 29 =
3. 3.51 × 53 =
4. 4.77 × 78 =
5. 5.499 × 496 =
6. 6.398 × 394 =
7. 7.395 × 398 =
8. 8.296 × 294 =
9. 9.58 × 56 =
10. 10.67 × 66 =
11. 11.53 × 53 =
12. 12.37 × 39 =
13. 13.497 × 498 =
14. 14.61 × 63 =
15. 15.29 × 26 =
16. 16.28 × 29 =
17. 17.89 × 87 =
18. 18.32 × 33 =
19. 19.596 × 598 =
20. 20.605 × 601 =
21. 21.393 × 398 =
22. 22.606 × 603 =
23. 23.88 × 88 =
24. 24.71 × 72 =
25. 25.601 × 602 =
26. 26.199 × 196 =
27. 27.391 × 398 =
28. 28.54 × 52 =
29. 29.63 × 64 =
30. 30.27 × 28 =
31. 31.193 × 191 =
32. 32.191 × 191 =
33. 33.394 × 395 =
34. 34.23 × 21 =
35. 35.18 × 19 =
36. 36.52 × 53 =
37. 37.44 × 43 =
38. 38.601 × 602 =
39. 39.598 × 598 =
40. 40.79 × 77 =

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