人教版四年级数学下册 小数的意义(课件)(共18张PPT)

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人教版四年级数学下册 小数的意义(课件)(共18张PPT)

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(共18张PPT)
小 数 的 意 义
“1”
= 0.9
= 0.1
“1”
= 0.1
= 0.9
= 0.2
= 0.8
“1”
= 0.1
= 0.9
= 0.2
= 0.8
“1”
= 0.3
= 0.7
“1”
= 0.1
= 0.9
= 0.2
= 0.8
= 0.3
= 0.7
= 0.4
= 0.6
“1”
= 0.1
= 0.9
= 0.2
= 0.8
= 0.3
= 0.7
= 0.4
= 0.8
= 0.5
“1”
= 0.01
“1”
= 0.56
= 0.44
“1”
= 0.01
= 0.56
= 0.44
= 0.57
= 0.43
= 0.58
= 0.42
= 0.60
= 0.6
1
0.1
0.01
0.001
1
0.1
0.01
0.001
10个
10个
10个
填一填:
分数:( )
小数:( )
0.7
(1)
(2)
分数:( )
小数:( )
0.44
填一填:
分数:( )
小数:( )
0.7
(1)
(2)
分数:( )
小数:( )
0.44
4个0.1
4个0.01
填一填:
分数:( )
小数:( )
0.7
(1)
(2)
小数:( )
1.44
填一填:
分数:( )
小数:( )
0.7
(1)
(2)
小数:( )
2.44
选一选:
0.47
0.9
0.0001
0.13
0.047
=0.001
=
0
估一估:
0
1
0.5
0.2
0.3
0.4
0.3
0.4
0.31
……

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