Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 553 · 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. 1.29 × 28 =
2. 2.78 × 78 =
3. 3.196 × 196 =
4. 4.305 × 307 =
5. 5.16 × 18 =
6. 6.294 × 291 =
7. 7.204 × 209 =
8. 8.202 × 208 =
9. 9.195 × 195 =
10. 10.409 × 402 =
11. 11.605 × 602 =
12. 12.206 × 208 =
13. 13.62 × 63 =
14. 14.495 × 492 =
15. 15.79 × 76 =
16. 16.77 × 79 =
17. 17.207 × 209 =
18. 18.199 × 198 =
19. 19.193 × 193 =
20. 20.89 × 86 =
21. 21.48 × 49 =
22. 22.602 × 605 =
23. 23.63 × 62 =
24. 24.71 × 72 =
25. 25.291 × 293 =
26. 26.48 × 49 =
27. 27.206 × 205 =
28. 28.601 × 602 =
29. 29.405 × 403 =
30. 30.492 × 496 =
31. 31.194 × 198 =
32. 32.92 × 94 =
33. 33.202 × 205 =
34. 34.73 × 72 =
35. 35.84 × 84 =
36. 36.17 × 19 =
37. 37.94 × 94 =
38. 38.66 × 68 =
39. 39.37 × 38 =
40. 40.57 × 58 =

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