(1)91.1 - _______ +83.7=90
(2)36.01-(7.63+ ________)=21.6
(3) 43.99+________ -32.7=50.3
(4)87-( _______-2.68)=45.54
(1)91.1 - _______ +83.7=90
(2)36.01-(7.63+ ________)=21.6
(3) 43.99+________ -32.7=50.3
(4)87-( _______-2.68)=45.54
1:-84.88
2:6.78
3:39.01
4:44.14
84.8
6.78
39.01
44.14
1、84.8
2、6.78
3、39.01
4、44.14