Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 870 · 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. 1.199 × 193 =
2. 2.58 × 59 =
3. 3.205 × 207 =
4. 4.44 × 44 =
5. 5.37 × 37 =
6. 6.502 × 509 =
7. 7.16 × 18 =
8. 8.92 × 93 =
9. 9.596 × 597 =
10. 10.89 × 89 =
11. 11.192 × 191 =
12. 12.49 × 48 =
13. 13.21 × 24 =
14. 14.44 × 42 =
15. 15.505 × 509 =
16. 16.393 × 395 =
17. 17.197 × 196 =
18. 18.302 × 304 =
19. 19.496 × 496 =
20. 20.508 × 508 =
21. 21.204 × 205 =
22. 22.393 × 398 =
23. 23.68 × 67 =
24. 24.402 × 409 =
25. 25.24 × 23 =
26. 26.26 × 28 =
27. 27.66 × 69 =
28. 28.409 × 402 =
29. 29.299 × 291 =
30. 30.89 × 88 =
31. 31.598 × 599 =
32. 32.392 × 397 =
33. 33.405 × 402 =
34. 34.49 × 46 =
35. 35.294 × 294 =
36. 36.494 × 493 =
37. 37.409 × 402 =
38. 38.406 × 405 =
39. 39.43 × 41 =
40. 40.44 × 44 =

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