Grade 1 Math: Addition and Subtraction 5

Complete the following problems in one minute:


  5       8       9       4    
- 1     - 3     - 5     - 2
___     ___     ___     ___






  6       9       4       8    
- 2     - 8     - 1     - 4
___     ___     ___     ___






  7       6       5       3    
- 5     - 5     - 2     - 2
___     ___     ___     ___






  9       7       9       6    
- 6     - 3     - 4     - 3
___     ___     ___     ___