Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 222 · 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. 1.78 × 79 =
2. 2.58 × 56 =
3. 3.31 × 33 =
4. 4.606 × 608 =
5. 5.197 × 194 =
6. 6.78 × 79 =
7. 7.197 × 191 =
8. 8.36 × 37 =
9. 9.89 × 89 =
10. 10.58 × 57 =
11. 11.79 × 76 =
12. 12.504 × 503 =
13. 13.497 × 494 =
14. 14.194 × 193 =
15. 15.308 × 301 =
16. 16.408 × 404 =
17. 17.91 × 91 =
18. 18.86 × 88 =
19. 19.193 × 196 =
20. 20.596 × 598 =
21. 21.206 × 203 =
22. 22.79 × 79 =
23. 23.408 × 407 =
24. 24.73 × 73 =
25. 25.87 × 88 =
26. 26.78 × 79 =
27. 27.303 × 308 =
28. 28.198 × 198 =
29. 29.57 × 58 =
30. 30.295 × 292 =
31. 31.307 × 303 =
32. 32.498 × 491 =
33. 33.62 × 61 =
34. 34.67 × 67 =
35. 35.506 × 505 =
36. 36.21 × 23 =
37. 37.495 × 497 =
38. 38.604 × 607 =
39. 39.81 × 81 =
40. 40.391 × 397 =

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