Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 715 · 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. 1.31 × 31 =
2. 2.19 × 16 =
3. 3.392 × 396 =
4. 4.598 × 598 =
5. 5.56 × 57 =
6. 6.499 × 497 =
7. 7.604 × 604 =
8. 8.199 × 198 =
9. 9.41 × 44 =
10. 10.69 × 69 =
11. 11.602 × 604 =
12. 12.22 × 21 =
13. 13.79 × 76 =
14. 14.394 × 393 =
15. 15.408 × 402 =
16. 16.395 × 393 =
17. 17.17 × 16 =
18. 18.54 × 51 =
19. 19.23 × 24 =
20. 20.51 × 54 =
21. 21.194 × 197 =
22. 22.405 × 404 =
23. 23.203 × 209 =
24. 24.34 × 32 =
25. 25.81 × 84 =
26. 26.23 × 21 =
27. 27.309 × 307 =
28. 28.58 × 56 =
29. 29.299 × 293 =
30. 30.52 × 53 =
31. 31.309 × 309 =
32. 32.596 × 599 =
33. 33.195 × 196 =
34. 34.54 × 53 =
35. 35.61 × 61 =
36. 36.81 × 83 =
37. 37.29 × 27 =
38. 38.294 × 298 =
39. 39.86 × 86 =
40. 40.499 × 498 =

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