直接写得数.1÷910=0.32÷0.8=2.3+3.57=7.3-2.8=23÷715=13+14=1÷19×19=2×13+5=47+4-47+4=425×99+425=-数学

题目简介

直接写得数.1÷910=0.32÷0.8=2.3+3.57=7.3-2.8=23÷715=13+14=1÷19×19=2×13+5=47+4-47+4=425×99+425=-数学

题目详情

直接写得数.
9
10
=
0.32÷0.8=2.3+3.57=7.3-2.8=
2
3
÷
7
15
=
1
3
+
1
4
=
1
9
×
1
9
=
1
3
+5=
4
7
+4-
4
7
+4=
4
25
×99+
4
25
=
题型:解答题难度:中档来源:不详

答案

class="stub"9
10
=class="stub"10
9
0.32÷0.8=0.4,2.3+3.57=5.87,7.3-2.8=4.5,
class="stub"2
3
÷class="stub"7
15
=class="stub"10
7
class="stub"1
3
+class="stub"1
4
=class="stub"7
12
class="stub"1
9
×class="stub"1
9
=1,
class="stub"1
3
+5=5class="stub"2
3
class="stub"4
7
+4-class="stub"4
7
+4=8,
class="stub"4
25
×99+class="stub"4
25
=16.

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