题目内容

口算

28＋35=

56÷7=

430－50=

48＋36=
答案：63;8;380;84
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口算．
53+35=		 87-35= 70+50=
46+23= 74-28= 70-42=
口算
5
9
×15=
3
5
×2=
1
4
×
4
5
=
1
9
×
3
7
=
7
12
×
3
4
=
1×
3
20
=
2
5
×
15
4
=
4
17
×34=
8
21
×
7
16
=
1
20
×
2
3
=
5
6
×
2
15
=
15
17
×
17
15
=
3
4
×
1
5
=
6
11
×
1
12
=
3
22
×
11
13
=
7
6
×24=
4
7
×
3
8
=
13
15
×30=		 28×
7
24
=
5
6
×
3
7
=

口算

28＋35=

56÷7=

430－50=

48＋36=
口算．
53+35=		 87-35= 70+50=
46+23= 74-28= 70-42=

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