直接写出得数。1.2+0.3 ={#blank#}1{#/blank#} 5.4-2.3={#blank#}2{#/blank#} 0.65+0.35 ={#blank#}3{#/blank#} 1-0.09 ={#blank#}4{#/blank#}
6.85+1.05 ={#blank#}5{#/blank#} 4.89-2.7 = {#blank#}6{#/blank#} 10-9.9 ={#blank#}7{#/blank#} 3.27+0.73={#blank#}8{#/blank#}
4.2-4 ={#blank#}9{#/blank#} 5.1-2.1 ={#blank#}10{#/blank#} 4.3 +2.7 ={#blank#}11{#/blank#} 5+ 4.4 ={#blank#}12{#/blank#}
