Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 623 · 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. 1.56 × 56 =
2. 2.193 × 199 =
3. 3.69 × 66 =
4. 4.16 × 17 =
5. 5.69 × 67 =
6. 6.83 × 82 =
7. 7.405 × 407 =
8. 8.599 × 593 =
9. 9.57 × 57 =
10. 10.498 × 498 =
11. 11.598 × 594 =
12. 12.402 × 405 =
13. 13.205 × 207 =
14. 14.71 × 73 =
15. 15.57 × 57 =
16. 16.94 × 92 =
17. 17.293 × 295 =
18. 18.295 × 291 =
19. 19.52 × 54 =
20. 20.599 × 598 =
21. 21.192 × 195 =
22. 22.72 × 72 =
23. 23.205 × 208 =
24. 24.67 × 68 =
25. 25.191 × 194 =
26. 26.47 × 47 =
27. 27.66 × 66 =
28. 28.194 × 198 =
29. 29.199 × 195 =
30. 30.82 × 83 =
31. 31.77 × 79 =
32. 32.32 × 31 =
33. 33.196 × 193 =
34. 34.596 × 596 =
35. 35.198 × 191 =
36. 36.302 × 301 =
37. 37.297 × 299 =
38. 38.72 × 71 =
39. 39.69 × 67 =
40. 40.196 × 196 =

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