Quiz yourself

Question

Halve the number 20 <img src="https://images.houseofmath.com/eyJidWNrZXQiOiJob20tZnJvbnRlbmQtYXNzZXRzIiwia2V5IjoiTWF0aCBWYXVsdC9QaWN0dXJlcy9OdW1iZXJzIGFuZCBRdWFudGl0aWVzL051bWJlcnMvVGFsbG9nbWHMimxpbmdUYWxsQcyKZG9ibGVvZ2HMimhhbHZlcmUyNS5zdmciLCJlZGl0cyI6eyJyZXNpemUiOnsid2lkdGgiOjEyMDAsImhlaWdodCI6NjMwLCJmaXQiOiJjb3ZlciJ9LCJ0b0Zvcm1hdCI6InBuZyJ9fQ==" alt="Grid with 2 times 10 inner squares" />

Accepted Answer

10

Answer

9

Answer

11

Answer

8