Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 211 · 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. 1.198 × 197 =
2. 2.209 × 202 =
3. 3.49 × 49 =
4. 4.603 × 607 =
5. 5.596 × 597 =
6. 6.192 × 197 =
7. 7.62 × 64 =
8. 8.295 × 291 =
9. 9.594 × 591 =
10. 10.73 × 71 =
11. 11.47 × 47 =
12. 12.198 × 196 =
13. 13.34 × 32 =
14. 14.409 × 405 =
15. 15.79 × 78 =
16. 16.82 × 81 =
17. 17.199 × 198 =
18. 18.62 × 63 =
19. 19.42 × 42 =
20. 20.78 × 78 =
21. 21.208 × 203 =
22. 22.199 × 196 =
23. 23.597 × 598 =
24. 24.92 × 91 =
25. 25.606 × 604 =
26. 26.606 × 609 =
27. 27.209 × 207 =
28. 28.67 × 69 =
29. 29.204 × 207 =
30. 30.495 × 497 =
31. 31.18 × 18 =
32. 32.88 × 87 =
33. 33.596 × 593 =
34. 34.594 × 591 =
35. 35.26 × 28 =
36. 36.41 × 41 =
37. 37.594 × 591 =
38. 38.94 × 91 =
39. 39.54 × 52 =
40. 40.76 × 79 =

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