问题 解答题
口算:
84÷4=3×120=300+5000=93÷3=2700-900=
6×700=100-37=38+54=23×3=77÷7=
8000+2000=90÷9=130×3=66÷2=44+19=
0×50=
1
7
+
5
7
=
4
5
-
2
5
=
5
8
+
1
8
=
8
9
-
1
9
=
答案

84÷4=21,3×120=360,300+5000=5300,93÷3=31,2700-900=1800,
6×700=4200,100-37=63,38+54=92,23×3=69,77÷7=11,
8000+2000=10000,90÷9=10,130×3=390,66÷2=33,44+19=63,
0×50=0,
1
7
+
5
7
=
6
7
4
5
-
2
5
=
2
5
5
8
+
1
8
=
3
4
8
9
-
1
9
=
7
9

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