Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 334 · 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. 1.492 × 499 =
2. 2.87 × 86 =
3. 3.393 × 397 =
4. 4.59 × 57 =
5. 5.408 × 409 =
6. 6.61 × 63 =
7. 7.51 × 52 =
8. 8.41 × 42 =
9. 9.87 × 88 =
10. 10.198 × 195 =
11. 11.192 × 194 =
12. 12.16 × 19 =
13. 13.34 × 33 =
14. 14.208 × 202 =
15. 15.17 × 18 =
16. 16.491 × 494 =
17. 17.193 × 194 =
18. 18.81 × 81 =
19. 19.47 × 47 =
20. 20.193 × 193 =
21. 21.297 × 295 =
22. 22.494 × 499 =
23. 23.51 × 51 =
24. 24.53 × 54 =
25. 25.298 × 295 =
26. 26.494 × 495 =
27. 27.22 × 21 =
28. 28.84 × 83 =
29. 29.202 × 206 =
30. 30.196 × 198 =
31. 31.192 × 191 =
32. 32.31 × 32 =
33. 33.16 × 16 =
34. 34.79 × 79 =
35. 35.22 × 24 =
36. 36.42 × 41 =
37. 37.303 × 303 =
38. 38.82 × 82 =
39. 39.61 × 61 =
40. 40.52 × 53 =

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