1 算一算。
2.03+15.8=
5.6÷0.4=
12-3.4=
0.37×20=
0.32÷80=
2.8÷0.2=
0.9-0.46=
3÷0.15=
6.72÷10=
6.07+8=
0.4÷0.08=
0.125×80=
4.96÷4=
9.8+1.02=
4.2÷21=
0.64÷0.2=
45÷90=
2.32÷4=
2.03+15.8=
5.6÷0.4=
12-3.4=
0.37×20=
0.32÷80=
2.8÷0.2=
0.9-0.46=
3÷0.15=
6.72÷10=
6.07+8=
0.4÷0.08=
0.125×80=
4.96÷4=
9.8+1.02=
4.2÷21=
0.64÷0.2=
45÷90=
2.32÷4=
答案:
17.83
14
8.6
7.4
0.004
14
0.44
20
0.672
14.07
5
10
1.24
10.82
0.2
3.2
0.5
0.58
14
8.6
7.4
0.004
14
0.44
20
0.672
14.07
5
10
1.24
10.82
0.2
3.2
0.5
0.58
2 列竖式计算。
83.4÷3=
82.5÷15=
25.8÷2.4=
83.4÷3=
82.5÷15=
25.8÷2.4=
答案:
83.4÷3=27.8
82.5÷15=5.5
25.8÷2.4=10.75
82.5÷15=5.5
25.8÷2.4=10.75
3 脱式计算。
(3.2+0.56)÷0.8
0.125×6.2×80
9.07-22.78÷3.4
(0.7+0.3)÷0.5
7.2÷0.9×8.3
1.8×25+24÷1.5
(3.2+0.56)÷0.8
0.125×6.2×80
9.07-22.78÷3.4
(0.7+0.3)÷0.5
7.2÷0.9×8.3
1.8×25+24÷1.5
答案:
(3.2+0.56)÷0.8
=3.76÷0.8
=4.7
0.125×6.2×80
=0.125×80×6.2
=10×6.2
=62
9.07-22.78÷3.4
=9.07-6.7
=2.37
(0.7+0.3)÷0.5
=1÷0.5
=2
7.2÷0.9×8.3
=8×8.3
=66.4
1.8×25+24÷1.5
=45+16
=61
=3.76÷0.8
=4.7
0.125×6.2×80
=0.125×80×6.2
=10×6.2
=62
9.07-22.78÷3.4
=9.07-6.7
=2.37
(0.7+0.3)÷0.5
=1÷0.5
=2
7.2÷0.9×8.3
=8×8.3
=66.4
1.8×25+24÷1.5
=45+16
=61
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