Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 219 · 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. 1.71 × 72 =
2. 2.598 × 596 =
3. 3.16 × 18 =
4. 4.53 × 53 =
5. 5.59 × 57 =
6. 6.201 × 204 =
7. 7.402 × 405 =
8. 8.41 × 43 =
9. 9.49 × 46 =
10. 10.597 × 596 =
11. 11.609 × 605 =
12. 12.19 × 16 =
13. 13.201 × 202 =
14. 14.49 × 48 =
15. 15.88 × 87 =
16. 16.301 × 306 =
17. 17.192 × 198 =
18. 18.41 × 44 =
19. 19.33 × 31 =
20. 20.36 × 39 =
21. 21.208 × 206 =
22. 22.77 × 78 =
23. 23.606 × 607 =
24. 24.62 × 61 =
25. 25.31 × 32 =
26. 26.56 × 58 =
27. 27.47 × 46 =
28. 28.62 × 62 =
29. 29.86 × 86 =
30. 30.306 × 308 =
31. 31.494 × 499 =
32. 32.405 × 407 =
33. 33.394 × 393 =
34. 34.64 × 61 =
35. 35.24 × 24 =
36. 36.294 × 292 =
37. 37.293 × 295 =
38. 38.21 × 22 =
39. 39.207 × 203 =
40. 40.27 × 29 =

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