Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 161 · 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. 1.291 × 298 =
2. 2.407 × 401 =
3. 3.295 × 296 =
4. 4.308 × 302 =
5. 5.38 × 39 =
6. 6.54 × 51 =
7. 7.42 × 44 =
8. 8.305 × 303 =
9. 9.32 × 32 =
10. 10.54 × 54 =
11. 11.39 × 39 =
12. 12.49 × 49 =
13. 13.59 × 56 =
14. 14.34 × 33 =
15. 15.595 × 594 =
16. 16.191 × 197 =
17. 17.78 × 77 =
18. 18.16 × 17 =
19. 19.48 × 49 =
20. 20.203 × 208 =
21. 21.39 × 39 =
22. 22.69 × 68 =
23. 23.491 × 496 =
24. 24.508 × 503 =
25. 25.79 × 78 =
26. 26.69 × 67 =
27. 27.202 × 205 =
28. 28.26 × 27 =
29. 29.605 × 604 =
30. 30.17 × 18 =
31. 31.17 × 19 =
32. 32.38 × 38 =
33. 33.67 × 67 =
34. 34.399 × 398 =
35. 35.494 × 493 =
36. 36.41 × 44 =
37. 37.499 × 493 =
38. 38.605 × 603 =
39. 39.37 × 38 =
40. 40.61 × 61 =

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