4. 
56/10= 5 r.6
for another team of ten you need 6+_=10
6+4=10
        
                    
             
        
        
        
1,002,003 rounded to the ten thousand place is 1,000,000
 
        
             
        
        
        
These are called integer numbers.
We start with natural numbers (or whole numbers), i.e. the set

When you add the opposite of each whole number, you have the set of integers:

 
        
                    
             
        
        
        
Answer:
x=15
Step-by-step explanation:
x=√(12)²+(9)²
x=√144+81=√225
x=15units