789789789÷789789789+(789789789+1)×789=
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/02 18:07:25
789789789÷789789789+(789789789+1)×789=
![789789789÷789789789+(789789789+1)×789=](/uploads/image/z/20261465-17-5.jpg?t=789789789%C3%B7789789789%2B%EF%BC%88789789789%2B1%EF%BC%89%C3%97789%3D)
![](http://img.wesiedu.com/upload/8/74/874f7b79fb6367d62eb7d7d85ab87393.jpg)
123×456÷789÷456×789÷123=______.
1.计算:(1)211×555+445×789+555×789+211×445 (2)S=1-2+3-4+...+(-1
123×456×789÷456÷789÷123
12÷(3/4÷1/5) = =
1÷2=1÷(1×2)=1÷1—1÷2
(1)9/2÷27=6/2÷18=3/2÷9=1/2÷()=()÷()=
789*456*123=
123+456+789=?
设a=1÷2÷3÷4,b=1÷(2÷3÷4),c=1÷(2÷3)÷4,d=1÷2÷(3÷4),计算(b÷a)÷(c÷d)
用简便方法计算789-296= 375+298= 25×32×125= 800÷32= 190÷2÷5= 152+261
789+456-123:1
-13÷2*3÷(-1/3)÷(-5)×(-1^8)=?、、