Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 649 · 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. 1.88 × 89 =
2. 2.594 × 598 =
3. 3.594 × 597 =
4. 4.92 × 94 =
5. 5.71 × 72 =
6. 6.193 × 191 =
7. 7.192 × 195 =
8. 8.59 × 56 =
9. 9.605 × 609 =
10. 10.78 × 76 =
11. 11.79 × 76 =
12. 12.21 × 22 =
13. 13.208 × 206 =
14. 14.198 × 199 =
15. 15.56 × 56 =
16. 16.72 × 72 =
17. 17.54 × 54 =
18. 18.63 × 64 =
19. 19.89 × 87 =
20. 20.44 × 42 =
21. 21.403 × 404 =
22. 22.204 × 205 =
23. 23.407 × 407 =
24. 24.46 × 48 =
25. 25.49 × 46 =
26. 26.295 × 292 =
27. 27.68 × 69 =
28. 28.37 × 38 =
29. 29.47 × 46 =
30. 30.63 × 61 =
31. 31.504 × 502 =
32. 32.43 × 42 =
33. 33.399 × 399 =
34. 34.595 × 592 =
35. 35.71 × 73 =
36. 36.46 × 48 =
37. 37.194 × 194 =
38. 38.23 × 21 =
39. 39.493 × 499 =
40. 40.499 × 492 =

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