36+79=115;
15÷1%=1500;
9.1-1.9=7.2;
7.2÷0.6=12;
0.25×8=2;
4
5 ÷
2
3 =
6
5 ;
1
4 -
1
5 =
1
20 ;
8
9 ×
3
4 =
2
3 ;
1+30%=130%;
1
2 +
5
7 =
17
14 ;
0.5 2=0.25
9π=28.26.
36+79=115;
15÷1%=1500;
9.1-1.9=7.2;
7.2÷0.6=12;
0.25×8=2;
4
5 ÷
2
3 =
6
5 ;
1
4 -
1
5 =
1
20 ;
8
9 ×
3
4 =
2
3 ;
1+30%=130%;
1
2 +
5
7 =
17
14 ;
0.5 2=0.25
9π=28.26.