Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 311 · 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. 1.202 × 207 =
2. 2.204 × 205 =
3. 3.48 × 49 =
4. 4.27 × 29 =
5. 5.46 × 49 =
6. 6.93 × 91 =
7. 7.23 × 24 =
8. 8.87 × 89 =
9. 9.36 × 37 =
10. 10.29 × 27 =
11. 11.48 × 47 =
12. 12.202 × 208 =
13. 13.499 × 494 =
14. 14.64 × 61 =
15. 15.192 × 192 =
16. 16.21 × 24 =
17. 17.18 × 16 =
18. 18.73 × 73 =
19. 19.78 × 79 =
20. 20.78 × 78 =
21. 21.18 × 16 =
22. 22.203 × 202 =
23. 23.495 × 499 =
24. 24.23 × 23 =
25. 25.602 × 601 =
26. 26.52 × 51 =
27. 27.26 × 28 =
28. 28.598 × 595 =
29. 29.44 × 43 =
30. 30.395 × 395 =
31. 31.207 × 202 =
32. 32.33 × 32 =
33. 33.609 × 603 =
34. 34.591 × 596 =
35. 35.71 × 74 =
36. 36.27 × 26 =
37. 37.49 × 49 =
38. 38.51 × 52 =
39. 39.399 × 395 =
40. 40.594 × 599 =

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