口算.314×7=37×37=310×6=916×83=18×3×89=14+34×13=123×35=715×10=-数学

题目简介

口算.314×7=37×37=310×6=916×83=18×3×89=14+34×13=123×35=715×10=-数学

题目详情

口算.
3
14
×7
=
3
7
×
3
7
=
3
10
×6
=
9
16
×
8
3
=
1
8
×3×
8
9
=
1
4
+
3
4
×
1
3
=
1
2
3
×
3
5
=
7
15
×10
=
题型:解答题难度:中档来源:不详

答案

class="stub"3
14
×7=class="stub"3
2
;②class="stub"3
7
×class="stub"3
7
=class="stub"9
49
;③class="stub"3
10
×6
=class="stub"9
5
; ④class="stub"9
16
×class="stub"8
3
=class="stub"3
2

class="stub"1
8
×3×class="stub"8
9
=class="stub"1
3
,⑥class="stub"1
4
+class="stub"3
4
×class="stub"1
3
=class="stub"1
2
; ⑦1class="stub"2
3
×class="stub"3
5
=1; ⑧class="stub"7
15
×10
=class="stub"14
3

更多内容推荐