8-4= 4+7= 3+6= 0+5=
9+7= 7+6= 7-3= 9+9=
10+2= 5+8= 11-10= 13-3=
13-2= 10-4= 8+7= 17-4=
6+8-1= 7+3+8= 15-5-5= 10-9+13=
14+0= 5+7= 13-3= 17-10=
10+5= 3+7= 6+4= 9-9=
8+2+2= 9-3-3= 16-6+5= 9+1-6=
(个)
①1.25×(30.1﹣24.91÷4.7)
②[ ﹣( ﹣ )]÷
③15.6×13.1﹣15.6﹣15.6×2.1
④2 ×23.4+11.1×57.6+6.54×28
⑤1234+2341+3412+4123
⑥ + + + + +