276+198=474, 10-1.6=8.4, 0.25×0.125=
1
32 , 1÷50%=2,
2
3 +
1
2 =
7
6 ,
8
3 ÷
5
6 =
16
5 ,
1
3 +
2
3 ×
1
2 =
2
3 , 2×
1
2 ÷2×
1
2 =
1
4 .
276+198=474, 10-1.6=8.4, 0.25×0.125=
1
32 , 1÷50%=2,
2
3 +
1
2 =
7
6 ,
8
3 ÷
5
6 =
16
5 ,
1
3 +
2
3 ×
1
2 =
2
3 , 2×
1
2 ÷2×
1
2 =
1
4 .