A:36
B:12
C:4
____: 25 = 25 ; 59 ×9÷ 59 ×9=____;
1.75× 625 +0.76÷ 47 =____; 2520﹣36×42÷27____.
一杯糖水,喝掉一半,剩下的半杯糖水( )