Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 851 · 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. 1.87 × 89 =
2. 2.21 × 23 =
3. 3.193 × 196 =
4. 4.192 × 191 =
5. 5.491 × 497 =
6. 6.506 × 506 =
7. 7.71 × 72 =
8. 8.42 × 44 =
9. 9.51 × 52 =
10. 10.594 × 595 =
11. 11.62 × 62 =
12. 12.507 × 508 =
13. 13.94 × 94 =
14. 14.48 × 47 =
15. 15.396 × 397 =
16. 16.87 × 86 =
17. 17.88 × 88 =
18. 18.204 × 203 =
19. 19.194 × 197 =
20. 20.18 × 19 =
21. 21.87 × 86 =
22. 22.598 × 595 =
23. 23.67 × 69 =
24. 24.34 × 31 =
25. 25.28 × 27 =
26. 26.27 × 27 =
27. 27.39 × 37 =
28. 28.76 × 76 =
29. 29.294 × 294 =
30. 30.47 × 47 =
31. 31.33 × 34 =
32. 32.605 × 603 =
33. 33.64 × 63 =
34. 34.63 × 62 =
35. 35.53 × 54 =
36. 36.606 × 605 =
37. 37.202 × 201 =
38. 38.21 × 21 =
39. 39.31 × 34 =
40. 40.77 × 76 =

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