脱式计算:(1)(2296+7344÷36)×2.4(2)1÷0.45÷0.9-78(3)0.36×[(2+3.8)÷0.04](4)(8-1.24)÷3(得数保留一位小数)-数学

题目简介

脱式计算:(1)(2296+7344÷36)×2.4(2)1÷0.45÷0.9-78(3)0.36×[(2+3.8)÷0.04](4)(8-1.24)÷3(得数保留一位小数)-数学

题目详情

脱式计算:
(1)(2296+7344÷36)×2.4
(2)1÷0.45÷0.9-
7
8

(3)0.36×[(2+3.8)÷0.04]
(4)(8-1.24)÷3(得数保留一位小数)
题型:解答题难度:中档来源:不详

答案

(1)(2296+7344÷36)×2.4
=(2296+204)×2.4
=2500×2.4
=6000;
(2)1÷0.45÷0.9-class="stub"7
8

=1×class="stub"20
9
×class="stub"10
9
-class="stub"7
8

=class="stub"200
81
-class="stub"7
8

=class="stub"1600-567
648

=class="stub"1033
648

(3)0.36×[(2+3.8)÷0.04]
=0.36×[5.8÷0.04]
=0.36×145
=52.2;
(4)(8-1.24)÷3
=6.76÷3
≈2.3.

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