Adding and Subtracting Rational Numbers

 $-7$  

 $7$  

 $6$  

 $-6$  

Subtract and keep the sign of the biggest number

Add together and keep the sign

Keep, change, switch

Add the opposite

 $-41.5$  

 $41.5$  

 $-27.5$  

 $27.5$  

 $-11\frac{1}{30}$  

 $11\frac{1}{30}$  

 $-10\frac{6}{11}$  

 $-10\frac{31}{30}$  

 $9\frac{7}{15}$ 

 $-8\frac{8}{15}$  

 $-9\frac{7}{15}$ 

 $8\frac{8}{15}$  

 $13.73$  

 $1.3$ 

 $-1.2$ 

 $-13.73$ 

 $\frac{13}{12}$  

 $\frac{7}{12}$  

 $-\frac{7}{12}$  

 $-1\frac{1}{12}$  

 $7\frac{23}{24}$  

 $-1\frac{17}{24}$  

 $-7\frac{23}{24}$  

 $-\frac{7}{24}$  

 $-\frac{2}{15}$  

 $\frac{2}{15}$ 

 $-3\frac{7}{15}$ 

 $2\frac{2}{15}$ 

 $-\frac{43}{45}$ 

 $1\frac{43}{45}$ 

 $-1\frac{2}{45}$  

 $-19\frac{12}{45}$