早教吧作业答案频道 -->数学-->
数学题在线解答(0.75×57.4-0.574×25+57.4)÷3
题目详情
数学题在线解答
(0.75×57.4-0.574×25+57.4)÷3
(0.75×57.4-0.574×25+57.4)÷3
▼优质解答
答案和解析
(0.75×57.4-0.574×25+57.4)÷3
=(0.75×57.4-57.4×0.25+57.4)÷3
=57.4×(0.75-0.25+1)÷3
=57.4×(1.5÷3)
=57.4×0.5
=28.7
=(0.75×57.4-57.4×0.25+57.4)÷3
=57.4×(0.75-0.25+1)÷3
=57.4×(1.5÷3)
=57.4×0.5
=28.7
看了 数学题在线解答(0.75×5...的网友还看了以下:
(1)原式=4.25×4×5.24/4+1.52/4×4×2.25=17×1.31+0.38×9= 2020-05-16 …
数学分数简便计算,11/24*16 1/4*2/7 6/12*6+5/12*6 3/5*5/6 5 2020-05-16 …
简算方法(请根据参与运算的数据特点灵活计算)2.4*2.53.5/(2.7-1.3)2.4*6/1 2020-05-20 …
5.4×3.8-6.5×4.4+2.7×5.4简便运算 2020-06-10 …
求1+2+2^2+2^3+2^4+…+2^2014的值.设S=1+2+2^2+2^3+2^4+…+ 2020-07-09 …
巧算:(5.4*3.8)-(6.5*4.4)+(2.7*5.4)199.4*19.93-199.3 2020-07-17 …
口算:5.6+3.4=10-2.7=2.8+3.3=1.2×0.8=10÷2.5=8×1.25=3 2020-07-19 …
因式分解(1)4x^2+4x-1(2)8x^6-27x^3y^6(3)5a-8a^2+42(4)3x 2020-10-31 …
直接写出得数.0.5×4÷0.5×4=4.2-4.2×0.5=1.2÷4×1.2÷4=6.3+6.3 2020-11-19 …
1、定义新运算用#定义新运算:对于任意的有理数a、b,都有a#b=b^2+1例如:7#4=4^2+1 2021-01-20 …