Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 779 · 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. 1.22 × 22 =
2. 2.202 × 202 =
3. 3.51 × 53 =
4. 4.92 × 94 =
5. 5.602 × 605 =
6. 6.209 × 201 =
7. 7.292 × 297 =
8. 8.86 × 89 =
9. 9.53 × 52 =
10. 10.23 × 23 =
11. 11.492 × 497 =
12. 12.64 × 63 =
13. 13.309 × 303 =
14. 14.605 × 605 =
15. 15.88 × 89 =
16. 16.33 × 31 =
17. 17.39 × 37 =
18. 18.36 × 39 =
19. 19.497 × 492 =
20. 20.43 × 44 =
21. 21.204 × 204 =
22. 22.26 × 26 =
23. 23.32 × 31 =
24. 24.29 × 29 =
25. 25.64 × 61 =
26. 26.73 × 72 =
27. 27.306 × 306 =
28. 28.21 × 24 =
29. 29.201 × 208 =
30. 30.19 × 16 =
31. 31.26 × 26 =
32. 32.21 × 21 =
33. 33.89 × 88 =
34. 34.404 × 407 =
35. 35.42 × 44 =
36. 36.305 × 307 =
37. 37.86 × 88 =
38. 38.393 × 392 =
39. 39.47 × 48 =
40. 40.304 × 302 =

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