题目内容
【题目】递等式计算.(用你喜欢的方法).
①1.75÷0.25÷0.4 ②4.68÷(22﹣14.2) ③1.6×0.75+1.8÷1.5
④6.9×1.6+8.4×6.9 ⑤24.5+5.5÷0.5
【答案】17.5 0.6 2.4
69 35.5
【解析】
①1.75÷0.25÷0.4
=1.75÷(0.25×0.4)
=1.75÷0.1
=17.5
②4.68÷(22﹣14.2)
=4.68÷7.8
=0.6
③1.6×0.75+1.8÷1.5
=1.2+1.2
=2.4
④6.9×1.6+8.4×6.9
=6.9×(1.6+8.4)
=6.9×10
=69
⑤24.5+5.5÷0.5
=24.5+11
=35.5
练习册系列答案
相关题目