题目内容

4.8×3.9+0.39+0.39的简便算式是

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A．（4.8+1+1）×3.9
B．4.8×3.9+0.39×2
C．4.8×3.9+0.1×3.9+0.1×3.9=（4.8+0.1+0.1）×3.9

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直接写得数 9-1.8=	4÷0.5=	1.4×0.5=	5.7÷0.3=	0.5×2.4=
1.53+0.8=	3.9-0.39=	0.25×12=	0.51÷0.3=	5.5÷10=

直接写出得数． 44÷4.4=	9-1.8=	1.4×0.5=	0.49÷0.7=	70÷0.5=
53+0.8=	3.9-0.39=	0.25×12=	0.51÷0.3=	9.2×0.01=

直接写出得数．
6.3+3.7= 9-1.8= 1.4×0.5= 0.49÷0.7=
1.53+0.8= 3.9-0.39= 0.25×1.2= 0.51÷0.3=
9.2×0.01= 70×0.5=

直接写出得数．6.3+3.7=9-1.8=1.4×0.5=0.49÷0.7=1.53+0.8=3.9-0.39=0.25×1.2=0.51÷0.3=9.2×0.01=70×0.5=