口算
0.6×2= 4.8÷0.6= 1.7+3= 4×9×0.25=
1.25×16= 9.6÷32= 2-0.09=
3
7
+
4
7
=
1
4
-
1
7
=
11
10
-
3
8
=
11
9
-
1
9
=
3
8
=
3
4
=
7
8
=
(這一排填小數(shù))
0.6×2=1.2 4.8÷0.6=8 1.7+3=4.7 4×9×0.25=9
1.25×16=20 9.6÷32=0.3 2-0.09=1.91
3
7
+
4
7
=1
1
4
-
1
7
=
3
28
11
10
-
3
8
=
29
40
11
9
-
1
9
=
10
9
3
8
=0.375
3
4
=0.75
7
8
=0.875(填小數(shù))
故答案為:1.2,8,4.7,9,20,0.3,1.91,1,
3
28
,
29
40
,
10
9
,0.375,0.75,0.875.
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