Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 214 · 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 × 21 =
2. 2.67 × 67 =
3. 3.195 × 193 =
4. 4.74 × 74 =
5. 5.294 × 299 =
6. 6.395 × 392 =
7. 7.496 × 496 =
8. 8.207 × 207 =
9. 9.46 × 49 =
10. 10.593 × 597 =
11. 11.21 × 24 =
12. 12.16 × 19 =
13. 13.73 × 72 =
14. 14.34 × 32 =
15. 15.23 × 23 =
16. 16.24 × 24 =
17. 17.71 × 74 =
18. 18.199 × 195 =
19. 19.51 × 51 =
20. 20.192 × 199 =
21. 21.397 × 393 =
22. 22.295 × 292 =
23. 23.26 × 29 =
24. 24.84 × 84 =
25. 25.191 × 197 =
26. 26.404 × 408 =
27. 27.193 × 193 =
28. 28.62 × 63 =
29. 29.401 × 408 =
30. 30.62 × 61 =
31. 31.84 × 81 =
32. 32.77 × 76 =
33. 33.53 × 51 =
34. 34.495 × 491 =
35. 35.53 × 53 =
36. 36.397 × 399 =
37. 37.203 × 204 =
38. 38.21 × 23 =
39. 39.396 × 398 =
40. 40.402 × 406 =

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