口算下面各题(10分)
2.5＋3.2= 9.8－4.8= 1.29－0.18=
2.26＋0.9= 8－0.82= 0.75＋0.25=
1.4＋0.5= 10.8－8.5= 6.4＋1.07=
0.55＋5.5= 1.05－0.09= 0.6＋6.45=
4.13－1.8= 0.46＋0.54= 1.07－0.47=
1.28＋0.22= 2.4－1.9= 0.06＋1.5=
2.5－0.9= 4.2＋0.53=