Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 509 · 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. 1.392 × 393 =
2. 2.307 × 307 =
3. 3.304 × 306 =
4. 4.505 × 505 =
5. 5.38 × 36 =
6. 6.394 × 391 =
7. 7.209 × 201 =
8. 8.306 × 309 =
9. 9.33 × 31 =
10. 10.407 × 403 =
11. 11.399 × 397 =
12. 12.305 × 306 =
13. 13.602 × 607 =
14. 14.594 × 597 =
15. 15.595 × 591 =
16. 16.607 × 602 =
17. 17.196 × 199 =
18. 18.53 × 52 =
19. 19.58 × 56 =
20. 20.294 × 297 =
21. 21.597 × 597 =
22. 22.296 × 296 =
23. 23.601 × 605 =
24. 24.41 × 41 =
25. 25.504 × 502 =
26. 26.302 × 303 =
27. 27.86 × 86 =
28. 28.32 × 34 =
29. 29.303 × 309 =
30. 30.63 × 61 =
31. 31.201 × 202 =
32. 32.598 × 591 =
33. 33.309 × 301 =
34. 34.506 × 502 =
35. 35.309 × 303 =
36. 36.494 × 495 =
37. 37.76 × 79 =
38. 38.51 × 52 =
39. 39.37 × 36 =
40. 40.88 × 88 =

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