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35×12+350÷7054.2-29+4.8-1690.7÷[(56-14)×24]14÷x=23.
题目详情
35×12+350÷70
54.2-
+4.8-
0.7÷[(
-
)×24]
÷x=
.
54.2-
2 |
9 |
16 |
9 |
0.7÷[(
5 |
6 |
1 |
4 |
1 |
4 |
2 |
3 |
▼优质解答
答案和解析
①35×12+350÷70
=420+5
=425
②54.2-
+4.8-
=(54.2+4.8)-(
+
)
=59-2
=57
③0.7÷[(
-
)×24]
=0.7÷[
×24-24×
]
=0.7÷14
=0.05
④
÷x=
÷x×x=
×x
×x=
×x÷
=
÷
x=
=420+5
=425
②54.2-
2 |
9 |
16 |
9 |
=(54.2+4.8)-(
2 |
9 |
16 |
9 |
=59-2
=57
③0.7÷[(
5 |
6 |
1 |
4 |
=0.7÷[
5 |
6 |
1 |
4 |
=0.7÷14
=0.05
④
1 |
4 |
2 |
3 |
1 |
4 |
2 |
3 |
2 |
3 |
1 |
4 |
2 |
3 |
2 |
3 |
1 |
4 |
2 |
3 |
x=
3 |
8 |
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