直接写得数413×39=712×314=0.25×35=(49)2=1+910=57-57×15=7.69-2.6=3-32=-数学

题目简介

直接写得数413×39=712×314=0.25×35=(49)2=1+910=57-57×15=7.69-2.6=3-32=-数学

题目详情

直接写得数
4
13
×39=
7
12
×
3
14
=
0.25×
3
5
=
4
9
2=
1+
9
10
=
5
7
-
5
7
×
1
5
=
7.69-2.6=3-
3
2
=
题型:解答题难度:中档来源:不详

答案

class="stub"4
13
×39=12;
class="stub"7
12
×class="stub"3
14
=class="stub"1
8
0.25×class="stub"3
5
=0.15;
class="stub"4
9
)2=class="stub"16
81
1+class="stub"9
10
=1class="stub"9
10
class="stub"5
7
-class="stub"5
7
×class="stub"1
5
=class="stub"4
7
7.69-2.6=5.09;3-class="stub"3
2
=1.5.

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