Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 781 · 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. 1.46 × 46 =
2. 2.79 × 79 =
3. 3.403 × 401 =
4. 4.195 × 196 =
5. 5.91 × 91 =
6. 6.493 × 492 =
7. 7.42 × 43 =
8. 8.407 × 405 =
9. 9.498 × 497 =
10. 10.39 × 38 =
11. 11.303 × 303 =
12. 12.307 × 302 =
13. 13.76 × 76 =
14. 14.206 × 204 =
15. 15.201 × 208 =
16. 16.69 × 68 =
17. 17.298 × 293 =
18. 18.89 × 88 =
19. 19.21 × 22 =
20. 20.57 × 57 =
21. 21.44 × 43 =
22. 22.34 × 31 =
23. 23.208 × 201 =
24. 24.37 × 36 =
25. 25.27 × 29 =
26. 26.201 × 201 =
27. 27.402 × 402 =
28. 28.301 × 304 =
29. 29.36 × 36 =
30. 30.54 × 52 =
31. 31.27 × 26 =
32. 32.507 × 505 =
33. 33.46 × 47 =
34. 34.34 × 31 =
35. 35.18 × 16 =
36. 36.72 × 72 =
37. 37.69 × 67 =
38. 38.28 × 29 =
39. 39.306 × 309 =
40. 40.208 × 202 =

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