Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 602 · 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. 1.608 × 605 =
2. 2.29 × 29 =
3. 3.207 × 208 =
4. 4.597 × 599 =
5. 5.59 × 59 =
6. 6.57 × 57 =
7. 7.23 × 21 =
8. 8.42 × 42 =
9. 9.604 × 603 =
10. 10.606 × 601 =
11. 11.309 × 305 =
12. 12.291 × 298 =
13. 13.396 × 392 =
14. 14.498 × 497 =
15. 15.83 × 84 =
16. 16.44 × 41 =
17. 17.396 × 395 =
18. 18.22 × 21 =
19. 19.69 × 67 =
20. 20.59 × 56 =
21. 21.23 × 22 =
22. 22.42 × 43 =
23. 23.601 × 601 =
24. 24.89 × 86 =
25. 25.599 × 591 =
26. 26.57 × 57 =
27. 27.67 × 67 =
28. 28.194 × 199 =
29. 29.89 × 89 =
30. 30.203 × 202 =
31. 31.83 × 81 =
32. 32.49 × 46 =
33. 33.195 × 199 =
34. 34.26 × 29 =
35. 35.591 × 593 =
36. 36.66 × 69 =
37. 37.406 × 403 =
38. 38.506 × 509 =
39. 39.192 × 194 =
40. 40.23 × 23 =

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