问题 解答题
50÷5=______84÷4=______72÷8=______63÷3=______
32+58=______4800+3700=______8000-5000=______582-245=______
18×5=______52×6=______150×4=______505×6=______
1-
2
17
=______
1
20
-
1
20
=______
1
7
+
5
7
=______
1
15
+
2
15
=______.
答案

50÷5=1084÷4=2172÷8=963÷3=21
32+58=904800+3700=85008000-5000=3000582-245=337
18×5=9052×6=312150×4=600505×6=3030
1-
2
17
=
15
17
1
20
-
1
20
=0
1
7
+
5
7
=
6
7
1
15
+
2
15
=
1
5
故答案为:10,21,9,21,90,8500,3000,337,90,312,600,3030,
15
17
,0,
6
7
1
5

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