2 sets of color-coded unit subtraction combinations (equations) slips. 1 set of combinations for each of the 2 Subtraction Working Charts. Each set supplied in a separate plastic box.
    
       Problem Slips: Subtraction Working Charts
Nienhuis Montessori
            
                
            
            
            $179
                (Inc. GST)
        
        
        
        
            
                
            
            
            $163
                (Ex. GST)
        
         
            - SKU:
- N559534
- Shipping:
- Calculated at Checkout
 
         
                     
                     
             
             
             
            