问题 解答题
75÷5=______66÷3=______48÷8=______68÷2=______
54+76=______7400+1700=______9800-6400=______887-335=______
15×7=______80×6=______170×4=______206×7=______
5
9
-
2
9
=______
1
19
-
1
19
=______
1
7
+
5
7
=______
4
11
+
7
11
=______.
答案

75÷5=1566÷3=2248÷8=668÷2=34
54+76=1307400+1700=91009800-6400=3400887-335=552
15×7=10580×6=480170×4=680206×7=1442
5
9
-
2
9
=
1
3
1
19
-
1
19
=0
1
7
+
5
7
=
6
7
4
11
+
7
11
=1

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