Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 822 · 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. 1.28 × 27 =
2. 2.37 × 36 =
3. 3.73 × 74 =
4. 4.72 × 74 =
5. 5.409 × 409 =
6. 6.292 × 295 =
7. 7.88 × 87 =
8. 8.298 × 297 =
9. 9.63 × 62 =
10. 10.29 × 28 =
11. 11.62 × 63 =
12. 12.82 × 83 =
13. 13.29 × 28 =
14. 14.497 × 497 =
15. 15.21 × 21 =
16. 16.94 × 91 =
17. 17.498 × 494 =
18. 18.495 × 498 =
19. 19.598 × 596 =
20. 20.499 × 491 =
21. 21.51 × 51 =
22. 22.392 × 391 =
23. 23.51 × 54 =
24. 24.93 × 91 =
25. 25.594 × 597 =
26. 26.402 × 409 =
27. 27.37 × 36 =
28. 28.69 × 69 =
29. 29.48 × 47 =
30. 30.29 × 26 =
31. 31.36 × 38 =
32. 32.607 × 607 =
33. 33.192 × 198 =
34. 34.399 × 391 =
35. 35.501 × 508 =
36. 36.58 × 56 =
37. 37.38 × 38 =
38. 38.38 × 36 =
39. 39.76 × 79 =
40. 40.599 × 597 =

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