Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 868 · 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. 1.77 × 79 =
2. 2.76 × 76 =
3. 3.24 × 21 =
4. 4.209 × 201 =
5. 5.41 × 42 =
6. 6.43 × 41 =
7. 7.196 × 191 =
8. 8.395 × 395 =
9. 9.401 × 409 =
10. 10.34 × 34 =
11. 11.47 × 48 =
12. 12.56 × 57 =
13. 13.34 × 33 =
14. 14.56 × 59 =
15. 15.44 × 41 =
16. 16.403 × 409 =
17. 17.396 × 398 =
18. 18.496 × 497 =
19. 19.197 × 192 =
20. 20.609 × 608 =
21. 21.39 × 39 =
22. 22.64 × 64 =
23. 23.17 × 17 =
24. 24.34 × 31 =
25. 25.46 × 47 =
26. 26.196 × 196 =
27. 27.71 × 74 =
28. 28.602 × 605 =
29. 29.208 × 201 =
30. 30.28 × 27 =
31. 31.29 × 27 =
32. 32.76 × 77 =
33. 33.42 × 41 =
34. 34.77 × 77 =
35. 35.86 × 87 =
36. 36.599 × 594 =
37. 37.604 × 608 =
38. 38.58 × 57 =
39. 39.86 × 88 =
40. 40.63 × 64 =

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