1.直接写出得数。（每题1★）
9+0.76=
0.82+0.9=
5-0.2-0.4=
2.8+0.12=
0.85-0.6=
5.8+1.2+4.22=
7.08+6.3=
7.9-0.79=
1.6-0.9+1.4=
4.53-2.7=
8.2+3.35=
6.3+0.8-1.2=
6.07-3.4=
1.02+0.08=
9.06+(3.2-2.2)=

1.9.76
1.72
4.4
2.92
0.25
11.22
13.38
7.11
2.1
1.83
11.55
5.9
2.67
1.1
10.06

2.脱式计算。(每题5★)
7.38+51.6−0.46
85.7−(26.23+43.7)
21.36−2.75+7.25
28.76−9.68−3.51
6.9+33.24+76.58
22.12−(11.35−3.96)

2.58.52
15.77
25.86
15.57
116.72
14.73