Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 187 · 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. 1.507 × 501 =
2. 2.92 × 92 =
3. 3.198 × 199 =
4. 4.502 × 505 =
5. 5.394 × 399 =
6. 6.498 × 491 =
7. 7.598 × 594 =
8. 8.31 × 34 =
9. 9.195 × 195 =
10. 10.204 × 202 =
11. 11.192 × 197 =
12. 12.72 × 71 =
13. 13.596 × 591 =
14. 14.37 × 38 =
15. 15.392 × 398 =
16. 16.309 × 302 =
17. 17.62 × 62 =
18. 18.199 × 197 =
19. 19.81 × 83 =
20. 20.21 × 23 =
21. 21.52 × 53 =
22. 22.39 × 39 =
23. 23.197 × 193 =
24. 24.22 × 21 =
25. 25.81 × 81 =
26. 26.83 × 84 =
27. 27.498 × 498 =
28. 28.39 × 39 =
29. 29.62 × 62 =
30. 30.397 × 396 =
31. 31.304 × 309 =
32. 32.407 × 406 =
33. 33.307 × 308 =
34. 34.77 × 77 =
35. 35.71 × 73 =
36. 36.59 × 56 =
37. 37.86 × 88 =
38. 38.299 × 293 =
39. 39.36 × 39 =
40. 40.92 × 93 =

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