Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 987 · 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. 1.69 × 66 =
2. 2.27 × 26 =
3. 3.306 × 301 =
4. 4.509 × 508 =
5. 5.77 × 77 =
6. 6.32 × 34 =
7. 7.409 × 407 =
8. 8.37 × 39 =
9. 9.63 × 61 =
10. 10.68 × 69 =
11. 11.208 × 205 =
12. 12.51 × 51 =
13. 13.63 × 61 =
14. 14.69 × 66 =
15. 15.594 × 598 =
16. 16.82 × 83 =
17. 17.62 × 61 =
18. 18.404 × 409 =
19. 19.81 × 84 =
20. 20.21 × 23 =
21. 21.48 × 48 =
22. 22.91 × 93 =
23. 23.598 × 591 =
24. 24.79 × 77 =
25. 25.205 × 207 =
26. 26.291 × 291 =
27. 27.46 × 49 =
28. 28.34 × 31 =
29. 29.73 × 74 =
30. 30.609 × 606 =
31. 31.31 × 32 =
32. 32.48 × 48 =
33. 33.28 × 26 =
34. 34.303 × 306 =
35. 35.503 × 502 =
36. 36.205 × 209 =
37. 37.61 × 61 =
38. 38.91 × 92 =
39. 39.22 × 21 =
40. 40.598 × 594 =

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