问题 解答题
400×6=96÷8=7×90=48÷4=50÷7=102×6=
84÷6=5×203=
1
5
+
2
5
=
7
9
-
4
9
=
1
7
+
3
7
=
7
8
-
5
8
=
答案

400×6=2400,96÷8=12,7×90=630,48÷4=12,50÷7=7…1,102×6=612,
84÷6=14,5×203=1015,
1
5
+
2
5
=
3
5
7
9
-
4
9
=
1
3
1
7
+
3
7
=
4
7
7
8
-
5
8
=
1
4

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