Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 947 · 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. 1.299 × 291 =
2. 2.47 × 47 =
3. 3.204 × 207 =
4. 4.202 × 209 =
5. 5.56 × 56 =
6. 6.207 × 205 =
7. 7.51 × 52 =
8. 8.37 × 38 =
9. 9.29 × 28 =
10. 10.209 × 204 =
11. 11.37 × 38 =
12. 12.497 × 497 =
13. 13.295 × 297 =
14. 14.297 × 296 =
15. 15.38 × 38 =
16. 16.18 × 19 =
17. 17.57 × 59 =
18. 18.191 × 194 =
19. 19.92 × 94 =
20. 20.58 × 59 =
21. 21.47 × 46 =
22. 22.67 × 68 =
23. 23.71 × 73 =
24. 24.39 × 38 =
25. 25.604 × 605 =
26. 26.77 × 79 =
27. 27.38 × 37 =
28. 28.63 × 62 =
29. 29.51 × 54 =
30. 30.34 × 32 =
31. 31.399 × 396 =
32. 32.206 × 203 =
33. 33.82 × 82 =
34. 34.38 × 39 =
35. 35.79 × 76 =
36. 36.296 × 291 =
37. 37.31 × 31 =
38. 38.46 × 48 =
39. 39.504 × 507 =
40. 40.67 × 68 =

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