1
在( )里填上合适的数
180÷30= (
想:(
180÷30= (
想:18÷(
180÷30= (
350÷70= (
想:(
350÷70= (
想:35÷(
350÷70= (
270÷90= (
想:(
270÷90= (
想:27÷(
270÷90= (
在( )里填上合适的数
180÷30= (
6
)想:(
6
)个30是180,180÷30= (
6
)想:18÷(
3
)= (6
)180÷30= (
6
)350÷70= (
5
)想:(
5
)个70是350,350÷70= (
5
)想:35÷(
7
)= (5
)350÷70= (
5
)270÷90= (
3
)想:(
3
)个90是270,270÷90= (
3
)想:27÷(
9
)= (3
)270÷90= (
3
)
答案:
180÷30=
(6)
想:
(6)个30是180,
180÷30=
(6)
想:18÷
(3)=
(6)
180÷30=
(6)
350÷70=
(5)
想:
(5)个70是350,
350÷70=
(5)
想:35÷
(7)=
(5)
350÷70=
(5)
270÷90=
(3)
想:
(3)个90是270,
270÷90=
(3)
想:27÷
(9)=
(3)
270÷90=
(3)
(6)
想:
(6)个30是180,
180÷30=
(6)
想:18÷
(3)=
(6)
180÷30=
(6)
350÷70=
(5)
想:
(5)个70是350,
350÷70=
(5)
想:35÷
(7)=
(5)
350÷70=
(5)
270÷90=
(3)
想:
(3)个90是270,
270÷90=
(3)
想:27÷
(9)=
(3)
270÷90=
(3)
80÷40=
80÷41≈
82÷40≈
150÷30=
147÷30≈
150÷28≈
450÷50=
454÷50≈
450÷53≈
200÷40=
480÷80=
630÷70=
482÷80≈
810÷89≈
278÷40≈
180÷31≈
542÷60≈
137÷70≈
160÷41≈
2
80÷41≈
2
82÷40≈
2
150÷30=
5
147÷30≈
5
150÷28≈
5
450÷50=
9
454÷50≈
9
450÷53≈
9
200÷40=
5
480÷80=
6
630÷70=
9
482÷80≈
6
810÷89≈
9
278÷40≈
7
180÷31≈
6
542÷60≈
9
137÷70≈
2
160÷41≈
4
答案:
80÷40=2
80÷41≈2
82÷40≈2
150÷30=5
147÷30≈5
150÷28≈5
450÷50=9
454÷50≈9
450÷53≈9
200÷40=5
480÷80=6
630÷70=9
482÷80≈6
810÷89≈9
278÷40≈7
180÷31≈6
542÷60≈9
137÷70≈2
160÷41≈4
80÷41≈2
82÷40≈2
150÷30=5
147÷30≈5
150÷28≈5
450÷50=9
454÷50≈9
450÷53≈9
200÷40=5
480÷80=6
630÷70=9
482÷80≈6
810÷89≈9
278÷40≈7
180÷31≈6
542÷60≈9
137÷70≈2
160÷41≈4
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