Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 710 · 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. 1.76 × 79 =
2. 2.31 × 34 =
3. 3.598 × 597 =
4. 4.206 × 208 =
5. 5.57 × 58 =
6. 6.42 × 44 =
7. 7.63 × 63 =
8. 8.67 × 66 =
9. 9.46 × 49 =
10. 10.604 × 606 =
11. 11.62 × 62 =
12. 12.306 × 302 =
13. 13.43 × 42 =
14. 14.94 × 92 =
15. 15.92 × 93 =
16. 16.16 × 19 =
17. 17.82 × 82 =
18. 18.502 × 503 =
19. 19.87 × 89 =
20. 20.504 × 503 =
21. 21.34 × 31 =
22. 22.62 × 64 =
23. 23.494 × 498 =
24. 24.298 × 299 =
25. 25.302 × 307 =
26. 26.43 × 41 =
27. 27.51 × 54 =
28. 28.32 × 33 =
29. 29.34 × 33 =
30. 30.81 × 83 =
31. 31.58 × 59 =
32. 32.496 × 499 =
33. 33.64 × 61 =
34. 34.17 × 18 =
35. 35.395 × 394 =
36. 36.56 × 56 =
37. 37.39 × 36 =
38. 38.84 × 84 =
39. 39.87 × 86 =
40. 40.201 × 201 =

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