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口算． 2.8÷4=	0.36÷3=	7.2÷0.6=	0.54÷0.6=
4.2÷6=	0.81÷9=	5.6÷0.7=	0.45÷0.3=
9.1÷7=	0.35÷5=	4.5÷0.3=	0.64÷0.8=
7.2÷8=	0.52÷4=	6.5÷0.5=	0.72÷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=

4.7+2.3=	4.5×2=	6.9-2.5=	7.2×0.8=
6×3.4=	0.62-0.32=	1.4×0.5=	0.75×100=
0.02×0.5=	3.6÷0.3=	6.3÷7=	5.6÷100=
0.75÷0.25=	0.125×8=	4.8÷0.3=	0.96÷2=
0.56÷28=	0.36÷0.4=	0.64÷0.8=	0.72÷3.6=
3.6÷24=	0.8×1.1=	7.2+12.8=	46.7-3.8=
12.8÷4=	5.2÷13=	12.5÷5=	1.64÷41=
10÷20=	24÷15=	8.65×10=	0.35×0.6=
3.08×0.01=	4.95×1000=	6.9×0.1=	0.4×0.5=
2.4÷0.8=	10.8÷9=	9.6÷0.8=	0.108÷2=
4.95÷0.9=	9.65÷0.1=	0.325×100=	2.5×8=
0.56÷0.7=	0.125×4=	3.28×0.1=	3.9÷0.13=
7.2×0.1=	0.01×0.1=	0.25×0.4=	1.6÷0.8=
1÷2.5=	1.25×0.8=	3.2÷0.04=	0÷1.7=
0.22×102=	9.6÷0.8=	5×0.24=	4.5-0.05=
3.9÷0.13	16.5÷0.5=	5×0.12=	24×0.5=
4.8×0.5=	2.8+4.2=	0.84÷2.1=	5÷0.25=
7.8÷0.01=	5.4÷0.6=	3.2÷5=	7×0.62=
0.56÷0.8=	7.4-2.8=	0.18÷0.2=	0.16÷8=
4.5×0.02=	8+7.2=	1.2×30=	0.012×0.2=
7.3×0.3=	9÷6=	3.6÷0.12=	7.8÷0.6=
2÷5=	4.5+5=	0.3÷0.6=	0.96÷0.2=
10.5×0.4=	7.3+0.27=	8×0.125=	0.54÷0.6=
0.61+0.39=	0.56÷28=	10÷20=	4.08÷0.4=
11-9.4=	0.8×0.11=	0.72+12.8=	5.6÷0.01=
2.3×100=	0.75×100=	0.108÷2=	10.8÷9=
0.7÷0.8=	16-5.07=	4.2×0.4=	0.72×6=
12÷0.5=	5.2×0.4=	12.2÷0.2=	5.6÷100=
0.41+3.7=	0.02×0.5=	7.2-0.8=	1.4×0.5=
84÷0.21=	0.75÷0.25=	2.5×16=	0.108÷2=
1.75+32.5=	16-5.07=	5.2÷13=	1.64÷41=
1.02×0.2=	0.26×0.3=	8.4×0.02=	1.29×6=
0.8×0.05=	12.6÷0.03=	8.71÷0.1=	21÷0.21=
0.8×0.13=	0.34÷17=	8.08÷0.4=	0.5×2.2=
1.24÷4=	3.27+0.63=	5.02×0.3=	0.3×0.5=
6.4÷4=	7.2÷1.8=	0.7÷0.35=	0.72÷1.44=
0.48÷0.04=	1.25÷2.5=	5.5+55=	16.8÷8=
0.54+2.2=	3.5-0.05=	2÷0.02=	0.25×40=
1.5×0.6=	0.32÷0.8=	12.25÷0.5=	73.5×0.1=
46.5+52.5=	0.45×102=	1.25×88=	2.64+3.85+1.54=
8×1.25=	5.6÷3.5=	4.2÷0.7÷6=	0.4×8.6×25=
0.27÷0.3=	2.5×101=	0.65×101-0.65=	2.6×7÷2.6×7=

口算 1.2÷0.2=	2.5×4=	0.25+4=	1.87×0=
3.5+0.5=	1.2÷0.4=	3.6÷4=	0÷1.25=
0.12×6=	0.64×0.03=	5.8+4.2-6.5=	7.8÷3=
0.125×8=	2.8÷1.4=	0.25÷0.5=	7.21÷7=
0.35÷10=	3.6÷3=	6.3÷0.9=	0.54÷6=
0.3×0.1=	1.3÷2=	0.4÷8=2	7.3÷3=
0.51÷0.3=	15÷0.01=	5÷10=	0.7×12=
0.2×0.5=	3.8×0.1=	0.2×0.2=	0.04×0.4=
12.4+7.6=	8×0.5=	0.72÷36=	9×2.5+2.5=
1.8÷3=	2.3÷2=	6.5÷5=	2.14÷2=
2.5×4=	2.7×2=	0.5×7=	4.8+3.6+5.2=
3.4÷1.7=	2.5+0.2=	4.5÷5=	5+2.8=
0.8×0.3=	13.5×2×0=	5.25÷5=	4×2.2=
0.12×0.5=	1.8×5=	6.24÷2=	2.83-1.43=
1.2+2.9=	3.8÷2=	1.32×3=	4.6×7=

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