288x（0.47+0.53）+（0.24-0.14）x11-0.1+0.47+1.53
=288+0.11-0.1+2
=300.01
2.89×47+1.53-1.4×1.1+24×0.11+288×0.53-0.1
1个回答
相关问题
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直接写得数．345+233= 45×11= 527-398= 235-47-53= 0.78+1.32= [3/16×4