636-198=438, 3.6÷0.036=100, 30 3=27000, 7÷19=
7
19 ,
3.7×0.1%=0.0037, 8.1+
1
4 =8.35, 0÷0.83=0,
3
5 ×2÷
3
5 ×2=4,
6÷(
1
2 -
1
3 )=36, 1-
2
5 -
3
5 =0,
1
3 ×( 15+
6
7 )=5
2
7 , 69×
5
68 =5
5
68 .
636-198=438, 3.6÷0.036=100, 30 3=27000, 7÷19=
7
19 ,
3.7×0.1%=0.0037, 8.1+
1
4 =8.35, 0÷0.83=0,
3
5 ×2÷
3
5 ×2=4,
6÷(
1
2 -
1
3 )=36, 1-
2
5 -
3
5 =0,
1
3 ×( 15+
6
7 )=5
2
7 , 69×
5
68 =5
5
68 .