Can the children find the value of the images, thinking carefully about the number/s that come before and after?  
 
Trim the answer cards before hiding around the classroom/outdoor area. Once the children have found a card, they work out the value of the image and then log their answer on the grid. They can also refer to the number line if needed. Can they work as a team to find the value of all 20 images? 
 
Focusses on the numbers 1 - 20 and also comes with answers too. 
 
6 pages in total.