Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 188 · 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. 1.77 × 77 =
2. 2.504 × 505 =
3. 3.51 × 54 =
4. 4.592 × 594 =
5. 5.39 × 37 =
6. 6.36 × 39 =
7. 7.74 × 72 =
8. 8.58 × 56 =
9. 9.42 × 42 =
10. 10.82 × 84 =
11. 11.502 × 509 =
12. 12.303 × 304 =
13. 13.296 × 297 =
14. 14.208 × 206 =
15. 15.302 × 309 =
16. 16.597 × 595 =
17. 17.409 × 408 =
18. 18.494 × 495 =
19. 19.304 × 303 =
20. 20.28 × 28 =
21. 21.39 × 36 =
22. 22.501 × 506 =
23. 23.494 × 493 =
24. 24.16 × 17 =
25. 25.78 × 77 =
26. 26.86 × 88 =
27. 27.406 × 402 =
28. 28.506 × 506 =
29. 29.504 × 503 =
30. 30.38 × 36 =
31. 31.605 × 607 =
32. 32.195 × 191 =
33. 33.77 × 77 =
34. 34.79 × 76 =
35. 35.402 × 405 =
36. 36.18 × 19 =
37. 37.291 × 291 =
38. 38.596 × 594 =
39. 39.399 × 392 =
40. 40.306 × 306 =

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