1 算一算。
0.2÷5=
0.8+0.18=
1.4÷0.5=
3.3×200=
509÷100=
1.08÷0.2=
2.47+1.53=
9.2÷2.3=
61.8÷60=
0.2÷5=
0.8+0.18=
1.4÷0.5=
3.3×200=
509÷100=
1.08÷0.2=
2.47+1.53=
9.2÷2.3=
61.8÷60=
答案:
0.04
0.98
2.8
660
5.09
5.4
4
4
1.03
0.98
2.8
660
5.09
5.4
4
4
1.03
2 在○里填上“>”“<”或“=”。
0.68×1.01○1.01
14.5÷9○14.5
6.23÷0.12○6.23
0.68÷1.01○0.68
2.03÷1○2.03
62.3÷1.2○62.3
37.5÷1.5○37.5
26.4×1.01○26.4
0.82×1○0.82÷1
3.75÷0.9○3.75÷0.8
2.64÷1.1○2.64÷1.2
0.82×0.99○0.82÷0.99
25.6÷0.01○25.6×100
0.68×1.01○1.01
14.5÷9○14.5
6.23÷0.12○6.23
0.68÷1.01○0.68
2.03÷1○2.03
62.3÷1.2○62.3
37.5÷1.5○37.5
26.4×1.01○26.4
0.82×1○0.82÷1
3.75÷0.9○3.75÷0.8
2.64÷1.1○2.64÷1.2
0.82×0.99○0.82÷0.99
25.6÷0.01○25.6×100
答案:
<
<
>
<
=
<
<
>
=
<
>
<
=
<
>
<
=
<
<
>
=
<
>
<
=
3 列竖式计算。
3.024÷0.96=
9.4÷1.1=(商用循环节表示)
6.26÷3.4≈(商保留两位小数)
3.024÷0.96=
9.4÷1.1=(商用循环节表示)
6.26÷3.4≈(商保留两位小数)
答案:
3.024÷0.96=3.15
9.4÷1.1=8.$\dot{5}$$\dot{4}$
6.26÷3.4≈1.84
9.4÷1.1=8.$\dot{5}$$\dot{4}$
6.26÷3.4≈1.84
4 脱式计算。
10.3+4.8-16.2÷2
24.32÷3.2+0.6×4
2.64÷1.1÷4.8
10.3+4.8-16.2÷2
24.32÷3.2+0.6×4
2.64÷1.1÷4.8
答案:
7
10
0.5
解析:
10.3+4.8-16.2÷2
=10.3+4.8-8.1
=15.1-8.1
=7
24.32÷3.2+0.6×4
=7.6+2.4
=10
2.64÷1.1÷4.8
=2.4÷4.8
=0.5
10
0.5
解析:
10.3+4.8-16.2÷2
=10.3+4.8-8.1
=15.1-8.1
=7
24.32÷3.2+0.6×4
=7.6+2.4
=10
2.64÷1.1÷4.8
=2.4÷4.8
=0.5
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