Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 524 · 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. 1.409 × 407 =
2. 2.303 × 309 =
3. 3.77 × 77 =
4. 4.598 × 599 =
5. 5.34 × 32 =
6. 6.402 × 405 =
7. 7.26 × 28 =
8. 8.295 × 291 =
9. 9.198 × 192 =
10. 10.396 × 395 =
11. 11.209 × 204 =
12. 12.408 × 402 =
13. 13.66 × 67 =
14. 14.51 × 52 =
15. 15.592 × 595 =
16. 16.88 × 88 =
17. 17.33 × 31 =
18. 18.16 × 18 =
19. 19.52 × 51 =
20. 20.47 × 49 =
21. 21.206 × 201 =
22. 22.395 × 393 =
23. 23.72 × 71 =
24. 24.295 × 296 =
25. 25.604 × 602 =
26. 26.39 × 39 =
27. 27.19 × 16 =
28. 28.32 × 34 =
29. 29.608 × 604 =
30. 30.89 × 87 =
31. 31.197 × 198 =
32. 32.73 × 71 =
33. 33.197 × 191 =
34. 34.198 × 198 =
35. 35.72 × 72 =
36. 36.27 × 26 =
37. 37.19 × 18 =
38. 38.52 × 52 =
39. 39.194 × 195 =
40. 40.86 × 89 =

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