Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 970 · 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. 1.49 × 47 =
2. 2.84 × 81 =
3. 3.53 × 53 =
4. 4.506 × 506 =
5. 5.493 × 498 =
6. 6.193 × 195 =
7. 7.38 × 37 =
8. 8.23 × 21 =
9. 9.51 × 53 =
10. 10.399 × 397 =
11. 11.26 × 29 =
12. 12.56 × 59 =
13. 13.69 × 68 =
14. 14.72 × 72 =
15. 15.296 × 291 =
16. 16.16 × 19 =
17. 17.76 × 78 =
18. 18.71 × 74 =
19. 19.296 × 298 =
20. 20.19 × 19 =
21. 21.204 × 204 =
22. 22.402 × 408 =
23. 23.302 × 304 =
24. 24.403 × 401 =
25. 25.64 × 62 =
26. 26.199 × 194 =
27. 27.22 × 23 =
28. 28.208 × 206 =
29. 29.303 × 301 =
30. 30.202 × 208 =
31. 31.29 × 29 =
32. 32.297 × 297 =
33. 33.31 × 32 =
34. 34.509 × 501 =
35. 35.609 × 606 =
36. 36.497 × 497 =
37. 37.198 × 199 =
38. 38.48 × 47 =
39. 39.294 × 291 =
40. 40.84 × 81 =

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