直接写得数:4.2+5.08= 7.2÷0.072= 4.3-3= 0.75÷1.5= 3.6×0.7÷3.6×0.7= 1.05-0.95= 2.5×4=
直接写得数:4.2+5.08=7.2÷0.072=4.3-3=0.75÷1.5=3.6×0.7÷3.6×0.7=1.05-0.95=2.5×4=2.5×2.4=3.2-1...
直接写得数:4.2+5.08= 7.2÷0.072= 4.3-3= 0.75÷1.5= 3.6×0.7÷3.6×0.7= 1.05-0.95= 2.5×4= 2.5×2.4= 3.2-1.34-1.66= 1÷1.25÷4= 12.8-0.28= 1.25×0.8= 8.4×5= 5.6-5.6÷7= 0.8+0.2-0.8+0.2=
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