4
5+
5
8=
57
40,
7
9÷
9
7=
49
81,
11
13÷
22
11=
11
26,
3
8+
3
4×
4
3=1
3
8,
1
6×
1
5=
1
30, 12×
5
6=10,
3
17×
1
3=
1
17, 21÷
1
4-84=0,
12×
4
3×
3
7=
48
7,
51
2÷
17
9=
27
2,
8
9÷4=
2
9,
1
5+
4
5÷2=
3
5.
4
5+
5
8=
57
40,
7
9÷
9
7=
49
81,
11
13÷
22
11=
11
26,
3
8+
3
4×
4
3=1
3
8,
1
6×
1
5=
1
30, 12×
5
6=10,
3
17×
1
3=
1
17, 21÷
1
4-84=0,
12×
4
3×
3
7=
48
7,
51
2÷
17
9=
27
2,
8
9÷4=
2
9,
1
5+
4
5÷2=
3
5.