Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 772 · 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. 1.86 × 89 =
2. 2.54 × 51 =
3. 3.44 × 44 =
4. 4.21 × 22 =
5. 5.88 × 86 =
6. 6.62 × 62 =
7. 7.62 × 61 =
8. 8.292 × 292 =
9. 9.16 × 18 =
10. 10.199 × 195 =
11. 11.201 × 207 =
12. 12.86 × 87 =
13. 13.304 × 305 =
14. 14.89 × 88 =
15. 15.597 × 597 =
16. 16.36 × 38 =
17. 17.91 × 93 =
18. 18.593 × 592 =
19. 19.74 × 72 =
20. 20.207 × 201 =
21. 21.79 × 76 =
22. 22.197 × 192 =
23. 23.303 × 305 =
24. 24.27 × 28 =
25. 25.53 × 51 =
26. 26.53 × 54 =
27. 27.198 × 192 =
28. 28.193 × 199 =
29. 29.68 × 66 =
30. 30.64 × 61 =
31. 31.59 × 57 =
32. 32.599 × 593 =
33. 33.61 × 61 =
34. 34.292 × 293 =
35. 35.207 × 206 =
36. 36.34 × 31 =
37. 37.604 × 604 =
38. 38.44 × 43 =
39. 39.601 × 608 =
40. 40.399 × 392 =

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