Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 21 · 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. 1.394 × 394 =
2. 2.72 × 72 =
3. 3.298 × 293 =
4. 4.82 × 82 =
5. 5.16 × 17 =
6. 6.409 × 407 =
7. 7.63 × 62 =
8. 8.308 × 302 =
9. 9.76 × 77 =
10. 10.401 × 408 =
11. 11.58 × 57 =
12. 12.199 × 195 =
13. 13.605 × 603 =
14. 14.82 × 81 =
15. 15.51 × 54 =
16. 16.399 × 391 =
17. 17.401 × 409 =
18. 18.207 × 206 =
19. 19.59 × 58 =
20. 20.394 × 399 =
21. 21.29 × 28 =
22. 22.496 × 497 =
23. 23.193 × 193 =
24. 24.204 × 205 =
25. 25.74 × 73 =
26. 26.51 × 52 =
27. 27.497 × 493 =
28. 28.493 × 496 =
29. 29.303 × 309 =
30. 30.291 × 293 =
31. 31.494 × 496 =
32. 32.202 × 201 =
33. 33.22 × 22 =
34. 34.398 × 395 =
35. 35.94 × 92 =
36. 36.199 × 196 =
37. 37.402 × 403 =
38. 38.208 × 207 =
39. 39.201 × 202 =
40. 40.191 × 195 =

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