$4\times3\times10$  =

 $63+276=$  

 $\frac{2}{7}+\frac{6}{7}$  =

 $307\div1=$  

 $48-25=$  

 $3.8\ +\ 2.19=$  

430,010 = 400,000 + ? = 10 =

62 x 6 =

 $63\ \div\ 9\ =$  

154 x 4 =