脱式计算.3375÷27×12(0.75+10.2)÷0.25×25%(445-1.6×34)÷412289×[134-(716-14)].-数学

题目简介

脱式计算.3375÷27×12(0.75+10.2)÷0.25×25%(445-1.6×34)÷412289×[134-(716-14)].-数学

题目详情

脱式计算.
3375÷27×12(0.75+10.2)÷0.25×25%(4
4
5
-1.6×
3
4
)÷4
1
2
2
8
9
×[1
3
4
-(
7
16
-
1
4
)].
题型:解答题难度:中档来源:西藏

答案


(1)3375÷27×12,
=125×12,
=1500;

(2)(0.75+10.2)÷0.25×25%,
=10.95÷0.25×0.25,
=10.95÷(0.25÷0.25),
=10.95;

(3)(4class="stub"4
5
-1.6×class="stub"3
4
)÷4class="stub"1
2

=(4class="stub"4
5
-1.2)÷4class="stub"1
2

=3.6÷4class="stub"1
2

=0.8;

(4)2class="stub"8
9
×[1class="stub"3
4
-(class="stub"7
16
-class="stub"1
4
)],
=2class="stub"8
9
×[1class="stub"3
4
-class="stub"3
16
],
=2class="stub"8
9
×1class="stub"9
16

=class="stub"325
72

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