Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 228 · 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. 1.63 × 64 =
2. 2.606 × 601 =
3. 3.296 × 299 =
4. 4.19 × 16 =
5. 5.28 × 28 =
6. 6.16 × 17 =
7. 7.42 × 42 =
8. 8.56 × 57 =
9. 9.62 × 64 =
10. 10.397 × 398 =
11. 11.205 × 205 =
12. 12.405 × 409 =
13. 13.203 × 208 =
14. 14.203 × 204 =
15. 15.205 × 202 =
16. 16.58 × 58 =
17. 17.19 × 17 =
18. 18.301 × 302 =
19. 19.86 × 88 =
20. 20.308 × 305 =
21. 21.201 × 203 =
22. 22.94 × 94 =
23. 23.509 × 501 =
24. 24.22 × 24 =
25. 25.197 × 195 =
26. 26.73 × 71 =
27. 27.22 × 23 =
28. 28.38 × 39 =
29. 29.393 × 394 =
30. 30.197 × 198 =
31. 31.198 × 194 =
32. 32.37 × 39 =
33. 33.92 × 92 =
34. 34.28 × 29 =
35. 35.19 × 17 =
36. 36.47 × 46 =
37. 37.94 × 94 =
38. 38.18 × 19 =
39. 39.294 × 293 =
40. 40.69 × 69 =

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