58+6=
31-7=
12+40=
80-20=
86-8=
46+9=
30+70=
98-60=
3元-8角=( )元( )角 9角+5角=( )元( )角
18+20= 42-10= 7+9= 16-8=
77-7= 50+14= 40+8= 35+40-60=
36-6+25= 25+(90-50)=
14-( )=10
9+( )=12
15-( ) =6
3+( )=11
6+( )=12
9+( )=14
15-( )=10
8+( )=13
11-( )=4
6+ ( )=14
14-( )=5
7+( )=11
16-( )=14
18-( )=16
( )+15=18
12-5= 13-9= 14-6= 15-7= 14-7= 15-9=
11-6= 14-5= 13-6= 12-9=
14-9= 12-8= 17-9= 16-9= 12-7=
16-0= 13+2=
+ = 1- = 1.25× = - =
0.9+99×0.9= 0÷ = 1÷ = -0.5=
0.6×101= 3.2×2.5×12.5=
49+20= 600﹣340= 1.7+0.2= 1﹣0.3=
+= -= 0.9×0.4= 1.6÷4=
×= ÷= 1.7÷1%= ×1.2=