Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 204 · 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. 1.79 × 77 =
2. 2.66 × 69 =
3. 3.34 × 34 =
4. 4.28 × 27 =
5. 5.605 × 602 =
6. 6.28 × 26 =
7. 7.404 × 401 =
8. 8.34 × 31 =
9. 9.401 × 405 =
10. 10.207 × 206 =
11. 11.78 × 79 =
12. 12.304 × 308 =
13. 13.27 × 27 =
14. 14.18 × 16 =
15. 15.32 × 33 =
16. 16.601 × 608 =
17. 17.31 × 31 =
18. 18.308 × 309 =
19. 19.496 × 496 =
20. 20.391 × 394 =
21. 21.208 × 209 =
22. 22.29 × 26 =
23. 23.298 × 299 =
24. 24.34 × 34 =
25. 25.56 × 58 =
26. 26.201 × 201 =
27. 27.29 × 26 =
28. 28.57 × 59 =
29. 29.62 × 64 =
30. 30.92 × 91 =
31. 31.198 × 199 =
32. 32.393 × 394 =
33. 33.37 × 39 =
34. 34.202 × 208 =
35. 35.16 × 19 =
36. 36.29 × 26 =
37. 37.599 × 597 =
38. 38.295 × 292 =
39. 39.67 × 67 =
40. 40.53 × 52 =

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