200
                            -18 - 12
                            What is -30?
                         
                    
                 
            
                
            
                
            
                
            
         
    
        
            
                
                    
                        
                            300
                            -18 + -21
                            What is -39
                         
                    
                 
            
                
                    
                        
                            300
                            -14 - (-7)
                            What is -7
                         
                    
                 
            
                
            
                
                    
                        
                            300
                            -225 ÷ -15
                            What is 15
                         
                    
                 
            
                
            
         
    
        
            
                
            
                
            
                
                    
                        
                            400
                            -11 x -12
                            What is 132
                         
                    
                 
            
                
                    
                        
                            400
                            1800 ÷ -60
                            What is -30
                         
                    
                 
            
                
                    
                        
                            400
                            -18 - (-33)
                            What is 15
                         
                    
                 
            
         
    
        
            
                
                    
                        
                            500
                            -75 + 44
                            What is -31?
                         
                    
                 
            
                
                    
                        
                            500
                            -125 - 61
                            What is -186
                         
                    
                 
            
                
            
                
                    
                        
                            500
                            -1200 ÷ -10
                            What is 120