1.125+2.125.+3.125+4.125+5.125+……+50.125=
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1.125+2.125.+3.125+4.125+5.125+……+50.125=1.125+2.125.+3.125+4.125+5.125+……+50.125=1.125+2.125.+3.125
1.125+2.125.+3.125+4.125+5.125+……+50.125=
1.125+2.125.+3.125+4.125+5.125+……+50.125=
1.125+2.125.+3.125+4.125+5.125+……+50.125=
1.125+2.125.+3.125+4.125+5.125+……+50.125 =(1+2+3+...+50)+0.125×50 =1275+6.25 =1281.25
1.125+2.125+3.125+.+100.125=
1.125+2.125+3.125+.80.125等于多少?
巧算1.125+2.125+3.125+4.125+50125+...+50.125
1.125+2.125+3.125+4.125……80.125 要过程
1.125+2.125.+3.125+4.125+5.125+……+50.125=
1.125+2.125+3.125+4.125……80.125=?
用简便方法计算 1.125×3×4 2.125×24 3.4×78×25
125+2.125+3.125.+80.125 (要写过程)
简算【3.91+(3+3÷7)+6.09+(6+4÷7)】×(2.125-1.125)+【1÷(2÷3)-1.5】×6.04
3.125-2又1/4-
3.125-2又1/4-
2.125×3+1.875÷4的简便方法
8又4分之一加3.125等于多少
1.25*38+1.125*3-5/4 脱式计算
9.25加括号负四分之一加括号负2.125减4又8分之3
4又3/4-3.125+(5.25-2又3/8) 简算
(-3又8分之1)+(-2.16)+8又4分之1+3.125+(-3.84)+(-0.25)
简便计算 :1.102X58-116 2.11X203-3 3.125+4X95要用递等式计算