Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 669 · 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. 1.18 × 18 =
2. 2.607 × 608 =
3. 3.58 × 58 =
4. 4.58 × 59 =
5. 5.73 × 73 =
6. 6.493 × 495 =
7. 7.301 × 307 =
8. 8.205 × 205 =
9. 9.191 × 197 =
10. 10.27 × 27 =
11. 11.206 × 201 =
12. 12.205 × 203 =
13. 13.93 × 94 =
14. 14.72 × 72 =
15. 15.78 × 77 =
16. 16.27 × 26 =
17. 17.33 × 32 =
18. 18.405 × 403 =
19. 19.394 × 394 =
20. 20.205 × 208 =
21. 21.57 × 58 =
22. 22.597 × 597 =
23. 23.69 × 68 =
24. 24.31 × 31 =
25. 25.94 × 93 =
26. 26.491 × 494 =
27. 27.79 × 78 =
28. 28.38 × 37 =
29. 29.17 × 18 =
30. 30.46 × 48 =
31. 31.19 × 18 =
32. 32.402 × 409 =
33. 33.57 × 56 =
34. 34.393 × 399 =
35. 35.34 × 31 =
36. 36.396 × 391 =
37. 37.18 × 18 =
38. 38.32 × 33 =
39. 39.205 × 208 =
40. 40.394 × 395 =

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