Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 599 · 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. 1.68 × 68 =
2. 2.609 × 602 =
3. 3.93 × 91 =
4. 4.391 × 394 =
5. 5.62 × 61 =
6. 6.307 × 302 =
7. 7.31 × 34 =
8. 8.41 × 44 =
9. 9.199 × 195 =
10. 10.16 × 18 =
11. 11.26 × 29 =
12. 12.297 × 296 =
13. 13.38 × 39 =
14. 14.66 × 68 =
15. 15.608 × 608 =
16. 16.58 × 59 =
17. 17.18 × 16 =
18. 18.508 × 504 =
19. 19.606 × 609 =
20. 20.16 × 17 =
21. 21.54 × 53 =
22. 22.199 × 194 =
23. 23.203 × 202 =
24. 24.23 × 23 =
25. 25.597 × 599 =
26. 26.81 × 84 =
27. 27.193 × 198 =
28. 28.596 × 594 =
29. 29.26 × 27 =
30. 30.301 × 302 =
31. 31.36 × 38 =
32. 32.395 × 396 =
33. 33.21 × 22 =
34. 34.94 × 91 =
35. 35.53 × 51 =
36. 36.496 × 497 =
37. 37.505 × 501 =
38. 38.493 × 496 =
39. 39.392 × 393 =
40. 40.201 × 204 =

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