Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 873 · 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. 1.17 × 18 =
2. 2.21 × 22 =
3. 3.86 × 87 =
4. 4.16 × 19 =
5. 5.24 × 24 =
6. 6.84 × 81 =
7. 7.599 × 597 =
8. 8.594 × 599 =
9. 9.596 × 592 =
10. 10.51 × 51 =
11. 11.48 × 48 =
12. 12.198 × 194 =
13. 13.16 × 19 =
14. 14.208 × 205 =
15. 15.205 × 203 =
16. 16.94 × 94 =
17. 17.204 × 201 =
18. 18.63 × 61 =
19. 19.89 × 87 =
20. 20.16 × 16 =
21. 21.34 × 33 =
22. 22.84 × 82 =
23. 23.31 × 32 =
24. 24.193 × 191 =
25. 25.74 × 74 =
26. 26.72 × 71 =
27. 27.26 × 29 =
28. 28.21 × 21 =
29. 29.297 × 293 =
30. 30.94 × 94 =
31. 31.498 × 497 =
32. 32.309 × 308 =
33. 33.39 × 38 =
34. 34.608 × 601 =
35. 35.17 × 17 =
36. 36.591 × 595 =
37. 37.21 × 23 =
38. 38.87 × 87 =
39. 39.57 × 58 =
40. 40.71 × 72 =

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