Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 694 · 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 × 87 =
2. 2.492 × 495 =
3. 3.18 × 16 =
4. 4.302 × 306 =
5. 5.46 × 49 =
6. 6.305 × 302 =
7. 7.33 × 34 =
8. 8.507 × 504 =
9. 9.202 × 209 =
10. 10.398 × 399 =
11. 11.394 × 398 =
12. 12.207 × 209 =
13. 13.67 × 66 =
14. 14.44 × 42 =
15. 15.18 × 16 =
16. 16.23 × 23 =
17. 17.205 × 202 =
18. 18.496 × 493 =
19. 19.49 × 48 =
20. 20.91 × 92 =
21. 21.27 × 29 =
22. 22.26 × 26 =
23. 23.41 × 42 =
24. 24.44 × 43 =
25. 25.62 × 62 =
26. 26.398 × 399 =
27. 27.38 × 38 =
28. 28.21 × 24 =
29. 29.42 × 41 =
30. 30.208 × 202 =
31. 31.198 × 199 =
32. 32.52 × 51 =
33. 33.32 × 32 =
34. 34.36 × 38 =
35. 35.91 × 91 =
36. 36.495 × 496 =
37. 37.594 × 591 =
38. 38.84 × 81 =
39. 39.88 × 87 =
40. 40.71 × 74 =

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