Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 511 · 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. 1.63 × 61 =
2. 2.61 × 64 =
3. 3.88 × 87 =
4. 4.502 × 503 =
5. 5.31 × 34 =
6. 6.16 × 19 =
7. 7.64 × 61 =
8. 8.37 × 38 =
9. 9.79 × 78 =
10. 10.64 × 63 =
11. 11.47 × 48 =
12. 12.609 × 603 =
13. 13.68 × 67 =
14. 14.397 × 395 =
15. 15.66 × 69 =
16. 16.494 × 498 =
17. 17.27 × 28 =
18. 18.21 × 21 =
19. 19.299 × 293 =
20. 20.399 × 397 =
21. 21.23 × 24 =
22. 22.203 × 209 =
23. 23.497 × 499 =
24. 24.94 × 91 =
25. 25.194 × 196 =
26. 26.506 × 503 =
27. 27.197 × 197 =
28. 28.26 × 29 =
29. 29.306 × 303 =
30. 30.401 × 407 =
31. 31.88 × 86 =
32. 32.54 × 51 =
33. 33.33 × 34 =
34. 34.78 × 78 =
35. 35.308 × 308 =
36. 36.408 × 405 =
37. 37.292 × 296 =
38. 38.309 × 308 =
39. 39.82 × 83 =
40. 40.395 × 393 =

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