早教吧作业答案频道 -->其他-->
脱式计算:52.4-(15+0.6)÷1.69.87×99+9.8746.8÷0.9÷0.45.5×17.3+6.7×5.5.
题目详情
脱式计算:
52.4-(15+0.6)÷1.6 | 9.87×99+9.87 | 46.8÷0.9÷0.4 | 5.5×17.3+6.7×5.5. |
▼优质解答
答案和解析
解;①52.4-(15+0.6)÷1.6,
=52.4-15.6÷1.6,
=52.4-9.75,
=42.65;
②9.87×99+9.87,
=9.87×(99+1),
=987;
③46.8÷0.9÷0.4,
=46.8÷(0.9×0.4),
=46.8÷0.36,
=130;
④5.5×17.3+6.7×5.5,
=5.5×(17.3+6.7),
=5.5×24,
=132.
=52.4-15.6÷1.6,
=52.4-9.75,
=42.65;
②9.87×99+9.87,
=9.87×(99+1),
=987;
③46.8÷0.9÷0.4,
=46.8÷(0.9×0.4),
=46.8÷0.36,
=130;
④5.5×17.3+6.7×5.5,
=5.5×(17.3+6.7),
=5.5×24,
=132.
看了 脱式计算:52.4-(15+...的网友还看了以下:
直接写出得数:0.5+0.4=0.90.9;1.4+2.7=4.14.1;8.2+3.7=11.9 2020-04-07 …
6、3.125×(1.6+12/5)÷(5/2-0.625)7/5×1/7×6/13+5/7×1/ 2020-04-07 …
(3+5/7-2/3)×(1/5+1/7+1/13)-(1/5-1/7+1/13)×3+(1/5+ 2020-04-27 …
excel 区域内数字统计如何统计下面这组数据:A B C D E F G H I1 6 9 12 2020-05-16 …
(1)2x-1.7+3/10=5又2/5(2)4/5÷(1/2-4/11×1/12)(3)[3(1 2020-05-17 …
计算下面各题,能简便的要简便1.21/5÷7×7/92.(1-2/3×3/5)×5/63.1/3÷ 2020-06-05 …
帮我解题好吗?⒈算一算(得数为分数).3/5+5/8=2/9+4/15=7/12-5/24=1/4 2020-07-17 …
设非空集合A{1,2,3,4,5,6,7},且当a∈A时必有8-a∈A,这样的A共有(15)个.{ 2020-08-01 …
口算六年级1/4*4—1=(2/5+3/5)*14=2/5*14+3/5*14=(1/19—2/9) 2020-11-04 …
设非空集合A{1,2,3,4,5,6,7},且当a∈A时必有8-a∈A,这样的A共有(15)个.{4 2020-12-07 …