题目内容

口算．
0.07÷0.7=		 5.4÷0.6= 4×0.1=
0.35×0.2= 23×0.32×0= 1.18+1.2+0.12=
7-0.56-4.46=
分析：根据小数乘除法的计算法则进行解答即可．
解答：
解：
0.07÷0.7=0.1
5.4÷0.6=9
4×0.1=0.4
0.35×0.2=0.07 23×0.32×0=0 1.18+1.2+0.12=2.5
7-0.56-4.46=2．
点评：明确小数乘除法的计算法则，是解答此题的关键．
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口算．
0.46+0.38=		 1-0.07= 3×1.5= 0.78+0.4= 6.4-4.6=
0.09×7= 3.4×5= 60×0.7= 5.5÷5=
口算．
5.6÷0.07= 0.02×25= 6÷1.2= 2.5×0.6= 12.5×8=
0.02×0.1= 6.3÷0.7= 0.18+0.72= 0.8×0.5= 99+0.1﹦
42= 0.12= 0.08×10= 1÷0.125= 1÷0.01=
1-0.02= 43×0.01﹦ 4.2÷2.1= 1.8÷0.18= 1.03-0.9=
口算
9.5×100=		 1.25×8 0.25×0.9×4= 1.87×0=
3.5-1.5= 1.2×0.4= 3.6×0.5= 0.6×5=
0.24+0.6= 0.64×0.03= 7.8+2.2-1.5= 8×0.05=
0.125×8= 1.3×4= 0.4×0.6= 3×0.08=
0.35×2= 2.9×0.3= 10-0.9= 5.67×0=
0.8×0.01= 2.5×0.2= 2.4×0.3= 1.6×0.25=
0.17×0.3= 15×0.01= 10×0.07= 0.7×0.05=
0.2×0.05= 7.8×0.01= 0.2×0.26= 0.04×4=
12.4+2.1= 0.08×0.5= 0.14×4= 9×2.5+9×1.5=
1.8×0.5= 2.3×5= 0.3×3.6= 8×0.9+8×2.1=
2.5×4= 0.8+2.7×2= 0.05×7= 4.8+2.1+7.9=
3.4-1.8= 2.5+0.2×2= 0.02×0.1= 5.4-2.8=
0.3×0.2= 3.5×2×0.1= 0.3×0.3= 0×10.3×2.2=
0.12×0.7= 0.2×0.5= 0.92×0.4= 6.7-1.43=
1.2×4= 1.3×2= 1.2×0.3= 4.6+5.08=
口算．
0.46+0.38=		 1-0.07= 3×1.5= 0.78+0.4= 6.4-4.6=
0.09×7= 3.4×5= 60×0.7= 5.5÷5=

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