Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 562 · 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. 1.69 × 66 =
2. 2.73 × 74 =
3. 3.401 × 404 =
4. 4.88 × 86 =
5. 5.38 × 37 =
6. 6.397 × 396 =
7. 7.309 × 305 =
8. 8.93 × 93 =
9. 9.39 × 36 =
10. 10.42 × 43 =
11. 11.71 × 73 =
12. 12.16 × 17 =
13. 13.38 × 37 =
14. 14.193 × 194 =
15. 15.68 × 69 =
16. 16.302 × 308 =
17. 17.295 × 299 =
18. 18.62 × 62 =
19. 19.42 × 42 =
20. 20.303 × 303 =
21. 21.28 × 28 =
22. 22.94 × 93 =
23. 23.29 × 29 =
24. 24.47 × 47 =
25. 25.296 × 298 =
26. 26.594 × 599 =
27. 27.392 × 394 =
28. 28.52 × 51 =
29. 29.56 × 57 =
30. 30.63 × 62 =
31. 31.94 × 94 =
32. 32.22 × 21 =
33. 33.197 × 194 =
34. 34.205 × 203 =
35. 35.66 × 69 =
36. 36.305 × 306 =
37. 37.48 × 47 =
38. 38.58 × 59 =
39. 39.197 × 192 =
40. 40.73 × 72 =

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