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计算下面各题,能简便的要简算1.475+25*162.4分3-4分3*4分3+4分1(6分5-3分2)/0.5
题目详情
计算下面各题,能简便的要简算
1.475+25*16 2.4分3-4分3*4分3+4分1 ( 6分5-3分2 ) /0.5
1.475+25*16 2.4分3-4分3*4分3+4分1 ( 6分5-3分2 ) /0.5
▼优质解答
答案和解析
475+25*16
=475+25*4*4
=475+100*4
=475+400
=875
4分3-4分3*4分3+4分1
=3/4-(3/4)*(3/4)+1/4
=(3/4)*(1-3/4)+1/4
=(3/4)*(1/4)+1/4
=(1/4)*(3/4+1)
=(1/4)*(7/4)
=7/16
( 6分5-3分2 ) /0.5
=(5/6-2/3)/0.5
=(5/6-4/6)*2
=(1/6)*2
=1/3
=475+25*4*4
=475+100*4
=475+400
=875
4分3-4分3*4分3+4分1
=3/4-(3/4)*(3/4)+1/4
=(3/4)*(1-3/4)+1/4
=(3/4)*(1/4)+1/4
=(1/4)*(3/4+1)
=(1/4)*(7/4)
=7/16
( 6分5-3分2 ) /0.5
=(5/6-2/3)/0.5
=(5/6-4/6)*2
=(1/6)*2
=1/3
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