下面这个四则运算,怎么从第二行,推出第三行?想不通啊8457-(7630-4578)+(7845-3076)-(6307-5784)-763=(8457+4578+7845+5784)-(7630+3076+6307+763)=(24000+2400+240+24)-(16000+1600+160+16)=8000+800+80+8=8888
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 14:02:39
![下面这个四则运算,怎么从第二行,推出第三行?想不通啊8457-(7630-4578)+(7845-3076)-(6307-5784)-763=(8457+4578+7845+5784)-(7630+3076+6307+763)=(24000+2400+240+24)-(16000+1600+160+16)=8000+800+80+8=8888](/uploads/image/z/14654084-68-4.jpg?t=%E4%B8%8B%E9%9D%A2%E8%BF%99%E4%B8%AA%E5%9B%9B%E5%88%99%E8%BF%90%E7%AE%97%2C%E6%80%8E%E4%B9%88%E4%BB%8E%E7%AC%AC%E4%BA%8C%E8%A1%8C%2C%E6%8E%A8%E5%87%BA%E7%AC%AC%E4%B8%89%E8%A1%8C%3F%E6%83%B3%E4%B8%8D%E9%80%9A%E5%95%8A8457-%EF%BC%887630-4578%EF%BC%89%2B%EF%BC%887845-3076%EF%BC%89-%EF%BC%886307-5784%EF%BC%89-763%3D%EF%BC%888457%2B4578%2B7845%2B5784%EF%BC%89-%EF%BC%887630%2B3076%2B6307%2B763%EF%BC%89%3D%EF%BC%8824000%2B2400%2B240%2B24%EF%BC%89-%EF%BC%8816000%2B1600%2B160%2B16%EF%BC%89%3D8000%2B800%2B80%2B8%3D8888)
下面这个四则运算,怎么从第二行,推出第三行?想不通啊8457-(7630-4578)+(7845-3076)-(6307-5784)-763=(8457+4578+7845+5784)-(7630+3076+6307+763)=(24000+2400+240+24)-(16000+1600+160+16)=8000+800+80+8=8888
下面这个四则运算,怎么从第二行,推出第三行?想不通啊
8457-(7630-4578)+(7845-3076)-(6307-5784)-763
=(8457+4578+7845+5784)-(7630+3076+6307+763)
=(24000+2400+240+24)-(16000+1600+160+16)
=8000+800+80+8
=8888
下面这个四则运算,怎么从第二行,推出第三行?想不通啊8457-(7630-4578)+(7845-3076)-(6307-5784)-763=(8457+4578+7845+5784)-(7630+3076+6307+763)=(24000+2400+240+24)-(16000+1600+160+16)=8000+800+80+8=8888
8457-(7630-4578)+(7845-3076)-(6307-5784)-763
=(8457+4578+7845+5784)-(7630+3076+6307+763)
=(8000+4000+7000+5000+400+500+800+700+50+70+40+80+7+8+5+4)-(7000+3000+6000+600+300+700+30+70+60+6+7+3)
=(24000+2400+240+24)-(16000+1600+160+16)
=(24000-16000)+(2400-1600)+(240-160)+(24-16)
=8000+800+80+8
=8888
现在明白了吗?