Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 948 · 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. 1.605 × 602 =
2. 2.53 × 53 =
3. 3.198 × 196 =
4. 4.89 × 86 =
5. 5.22 × 21 =
6. 6.88 × 86 =
7. 7.77 × 76 =
8. 8.92 × 91 =
9. 9.89 × 89 =
10. 10.93 × 91 =
11. 11.298 × 296 =
12. 12.37 × 36 =
13. 13.506 × 502 =
14. 14.297 × 299 =
15. 15.86 × 89 =
16. 16.495 × 493 =
17. 17.23 × 23 =
18. 18.201 × 206 =
19. 19.23 × 21 =
20. 20.202 × 202 =
21. 21.33 × 33 =
22. 22.206 × 208 =
23. 23.201 × 208 =
24. 24.23 × 22 =
25. 25.47 × 47 =
26. 26.592 × 596 =
27. 27.19 × 18 =
28. 28.73 × 74 =
29. 29.302 × 308 =
30. 30.76 × 76 =
31. 31.302 × 302 =
32. 32.39 × 38 =
33. 33.297 × 295 =
34. 34.77 × 78 =
35. 35.27 × 26 =
36. 36.27 × 29 =
37. 37.28 × 28 =
38. 38.71 × 72 =
39. 39.28 × 26 =
40. 40.392 × 399 =

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