简便算:36×28-2400÷15=?36×109-36×9=?1308÷2简便算:36×28-2400÷15=?36×109-36×9=?1308÷25÷4=?121×78+121×23-121=?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/16 11:57:00
简便算:36×28-2400÷15=?36×109-36×9=?1308÷2简便算:36×28-2400÷15=?36×109-36×9=?1308÷25÷4=?121×78+121×23-121=?

简便算:36×28-2400÷15=?36×109-36×9=?1308÷2简便算:36×28-2400÷15=?36×109-36×9=?1308÷25÷4=?121×78+121×23-121=?
简便算:36×28-2400÷15=?36×109-36×9=?1308÷2
简便算:36×28-2400÷15=?36×109-36×9=?1308÷25÷4=?121×78+121×23-121=?

简便算:36×28-2400÷15=?36×109-36×9=?1308÷2简便算:36×28-2400÷15=?36×109-36×9=?1308÷25÷4=?121×78+121×23-121=?
36×28-2400÷15
= (40-4)*28-2400*2/30
=1120-112-160
=1008-160
= 848
36×109-36×9
=36*100
=3600
1308÷25÷4
=13.08*4/4
=13.08
121×78+121×23-121
=121*(78+23-1)
=12100