Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 402 · 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. 1.86 × 89 =
2. 2.44 × 41 =
3. 3.31 × 32 =
4. 4.196 × 192 =
5. 5.598 × 594 =
6. 6.18 × 16 =
7. 7.64 × 64 =
8. 8.67 × 69 =
9. 9.602 × 606 =
10. 10.501 × 507 =
11. 11.598 × 591 =
12. 12.77 × 78 =
13. 13.199 × 194 =
14. 14.598 × 591 =
15. 15.398 × 396 =
16. 16.76 × 78 =
17. 17.39 × 38 =
18. 18.205 × 202 =
19. 19.32 × 33 =
20. 20.41 × 41 =
21. 21.22 × 24 =
22. 22.302 × 308 =
23. 23.595 × 591 =
24. 24.594 × 599 =
25. 25.296 × 296 =
26. 26.26 × 26 =
27. 27.91 × 91 =
28. 28.62 × 64 =
29. 29.504 × 508 =
30. 30.59 × 56 =
31. 31.87 × 86 =
32. 32.53 × 52 =
33. 33.61 × 64 =
34. 34.605 × 607 =
35. 35.29 × 29 =
36. 36.298 × 298 =
37. 37.397 × 396 =
38. 38.31 × 33 =
39. 39.301 × 302 =
40. 40.27 × 26 =

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