心算.
2.3+2.2= 5.62﹣2.02= 0.25+1.8=
9.5﹣1.3= 1.3﹣0.8= 3.5﹣0.5=
1.95÷3.05= 2.3+1.6= 5.31﹣2.01=
算一算,填一填.
0.9+0.6= 15.4+2.97= 5.94+10.7=
10﹣3.14= 10.2﹣8.75= 11.65﹣7.39=
口算.
10﹣4.2= 7.1﹣3.9= 4.3﹣4= 3.8+1.4=
5.7+1.8= 2.7﹣1.7= 0.5+8.5= 3.6﹣0.9=
试题篮
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