脱式计算:3×8.7+8.7×3.7(13-16+14)×1274×58+14÷85.-六年级数学

题目简介

脱式计算:3×8.7+8.7×3.7(13-16+14)×1274×58+14÷85.-六年级数学

题目详情

脱式计算:
3×8.7+8.7×3.7
1
3
-
1
6
+
1
4
)×12
7
4
×
5
8
+
1
4
÷
8
5
题型:解答题难度:中档来源:不详

答案

(1)3×8.7+8.7×3.7,
=26.1+32.19,
=58.29;

(2)(class="stub"1
3
-class="stub"1
6
+class="stub"1
4
)×12,
=class="stub"1
3
×12-class="stub"1
6
×12+class="stub"1
4
×12,
=4-2+3,
=5;

(3)class="stub"7
4
×class="stub"5
8
+class="stub"1
4
÷class="stub"8
5

=(class="stub"7
4
+class="stub"1
4
)×class="stub"5
8

=class="stub"8
4
×class="stub"5
8

=1class="stub"1
4

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