Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 816 · 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. 1.89 × 86 =
2. 2.21 × 23 =
3. 3.62 × 61 =
4. 4.67 × 67 =
5. 5.24 × 21 =
6. 6.66 × 67 =
7. 7.87 × 86 =
8. 8.22 × 23 =
9. 9.406 × 403 =
10. 10.22 × 24 =
11. 11.72 × 74 =
12. 12.86 × 89 =
13. 13.51 × 54 =
14. 14.57 × 59 =
15. 15.294 × 297 =
16. 16.198 × 199 =
17. 17.77 × 76 =
18. 18.23 × 23 =
19. 19.64 × 62 =
20. 20.298 × 297 =
21. 21.196 × 196 =
22. 22.302 × 301 =
23. 23.304 × 304 =
24. 24.19 × 19 =
25. 25.297 × 294 =
26. 26.29 × 28 =
27. 27.399 × 393 =
28. 28.308 × 307 =
29. 29.402 × 402 =
30. 30.597 × 594 =
31. 31.22 × 22 =
32. 32.494 × 491 =
33. 33.67 × 67 =
34. 34.593 × 595 =
35. 35.593 × 597 =
36. 36.408 × 408 =
37. 37.605 × 609 =
38. 38.596 × 596 =
39. 39.21 × 22 =
40. 40.392 × 395 =

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