5÷0.5=15.7.5是0.5的倍数. [ ] 题目和参考答案——青夏教育精英家教网—

1.23÷3=	0.8×11=	1-0.75=
1.7×0.4=	0.36÷12=	1.6+0.38=
1.2÷0.3=	0.75×4=	15×0.4=
2.14-0.9=	4×0.25=	10÷2.5=
0.4×52=	1.6×0.4=	9.6÷6=
4.3-0.4=	7-6.2=	0.86-0.3=
8.8÷2.2=	2.6÷0.2=	0.15×3=
0.9÷0.45=	0.27÷3=	0.51+1.7=
0.6÷0.5=	0.125×8=	0.38×1000=
6.8-1.7=	2.4×0.2=	32.8+19=
0.56÷14=	1÷0.05=	6÷12=
0.14×5=	3×1.4=	4.9÷0.7=
0.4÷8=	6.3+3.7=	3.5×0.2=
0.2×12.6×5=	8.4÷4.2=	2.4×0.5=
0÷3.5×0.2=	0×9.7+2.3=	1.6×9+1.6=
3.8+1.2=	4.8÷0.3=	530+270=
7.6÷3.8=	92÷2.3=	9.6-1.6=
7.2+2.8=	2.63+0.37=	0.67+1.24=
0.3×101=	0.25×8=	16÷1.6=
26.1-3.5-7.5=

3.2×0.2=	1.4×0.4=	3.3÷3=	1.2÷0.3=	0.56÷8=
2.5×0.4=	1.5×2=	0.7×7=	7.3+0.3=	1.23×3=
0.53-0.3=	1.8×0.5=	0.9×0.01=	0.23×3=	1.6÷0.04=
2-1.2=	7.8÷6=	8.4÷0.21=	8.4÷0.7=	1.23×3=
5.6+3.6=	9-2.35=	0.56÷8=	7.3+2.7=	4.8÷1.2=
5.6÷0.4=	4.5÷0.9=	8.1×2=	90÷3=	7.2÷0.9=
1.23+3=	5.6+1.23=	4.5×2=	5.6÷1.4=	6.6÷1.1=
2.1÷3=	0.6×0.5=	3.23×2=	1.8÷3=	7.2÷6=
12.5÷0.1=	0.32÷0.8=	1.6+3.7=	0.45×0.2=	4.8÷0.08=
0.36÷1.8=	0.4×0.5=	8.4+5.6=	8.4÷2.1=	1.8×0.4=
0.01×8=	7.31×100=	0.09×6=	0.8×0.6=	3+2.3=
1.25×8=	3÷5=	2.3+2.3=	6.23+3.6=	9.3÷3=
4.8÷0.8=	7.5-4.5=	5.7+4.3=	0.75÷15=	1÷0.25=
1.2×60=	6÷0.2=	0.21×4=	0.25×4×9=	2.33×1.2=
0.62÷0.62-1=	5+3.2÷0.8=	7.5÷2.5×0=	3.9×0.01=	0.001+10.099=
3-0.98=	6×0.25=	0.63÷0.9=	8.95÷0.895=

五（1）班全体同学的左眼视力情况如下：
5.0　4.9　5.3　5.2　4.7　5.2　4.8　5.1　5.3 5.2
4.8　5.0　4.5　5.1　4.9　5.1　4.7　5.0　4.8　5.1
5.0　4.8　4.9　5.1　4.5　5.1　4.6　5.1　4.7　5.1
5.0　5.1　5.1　4.9　5.0　5.1　5.2　5.1　4.6　5.0
（1）根据上面的数据完成下面的统计表．

左眼视力	4.5	4.6	4.7	4.8	4.9	5.0	5.1	5.2	5.3
人　　数

．
（3）你认为用哪一个数据代表全班同学视力的一般水平比较合适？
（4）视力在4.9及以下为近视，五（1）班同学左眼视力近视的同学占百分之几？你对他们有什么建议？

3.5×0.4=	2.5×0.4=	2.3×0.2=	2.1÷0.3=
7.1×0.4=	4.5÷0.15=	1-0.07=	0.42÷0.7=
12.4÷4=	2.5+1.5=	5.9×0.2=	0.48÷0.8=
0.25×1.3×4=	20÷0.01=	9÷0.01=	5.5÷1.1=
4.79+15.81=	0.3÷0.03=	0.2×0.1=	3.6+6.4=
0.56÷0.28=	1.2×0.3=	6.7-5.6=	7.25÷0.5=
4.2÷0.21=	4.3×0=	0.15÷0.5=	3.5×4=
5.32-5.3=	1.25×3.4×8=	9.6÷3.2=	3.6+2.4=
4.3-2.7+5.7=	7.2-5.6=	1.8÷0.9=	8.2×0.5=
5.6÷0.4=	8.5÷5=	5.6×0.5=	9.8÷0.2=
3.56×0.2=	3.4+1.5+4.6=	3.4×0.04=	6.12+3.48=
6÷0.12=	7.6÷4=	3.4×0.5=	5.2-3.2-1.8=
6-3.8=	7.5÷3=	3.5+5.4=	3×2.5=
3.5+6.5=	7-6.23=	8÷0.4=	0.25×2.5=
7.5÷0.5=	0.89-0.48=	3.5×0.8=	5.9-（3.2+0.9）=

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=

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