1.3﹣0.7= 2.4+0.6= 7×99+7= 24﹣19+24+19=
7.5﹣2.8= 4×（36﹣25）= 4.3+1.5= 300﹣84﹣16=
2﹣1.1= 5.5﹣3.2= 120÷6÷2= 3.7+2.5=
1.3﹣0.7= 2.4+0.6= 7×99+7= 24﹣19+24+19=
7.5﹣2.8= 4×（36﹣25）= 4.3+1.5= 300﹣84﹣16=
2﹣1.1= 5.5﹣3.2= 120÷6÷2= 3.7+2.5=
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