1.111111*999999=
来源:学生作业帮 编辑:神马作文网作业帮 分类:综合作业 时间:2024/11/11 20:44:20
1.111111*999999=
2.7.5*43+19*2.5=
3.1994+199.4+19.94+1.994=
4.100+99+98-97-96-95+…+10+9+8-7-6-5+4+3+2-1=
5.53*46+71*54+82*54=
都答上过程来的、给优秀.
2.7.5*43+19*2.5=
3.1994+199.4+19.94+1.994=
4.100+99+98-97-96-95+…+10+9+8-7-6-5+4+3+2-1=
5.53*46+71*54+82*54=
都答上过程来的、给优秀.
1. 111111*999999=111111*(1000000-1)=111111000000-111111=111110888889
2. 7.5*43+19*2.5=2.5(43*3+19)=2.5(129+19)=370
3. 1994+199.4+19.94+1.994=1.994(1000+100+10+1)=1.994*1111=2215.334
4. 100+99+98-97-96-95+…+10+9+8-7-6-5+4+3+2-1
=(3+3+3)*16+4+3+2-1
=152
5. 53*46+71*54+82*54=53*46+(71+82)*54=53*46+153+54
=53*46+(100+53)*54
=53*46+54*100+53*54
=53*(46+54)+54*100
=53*100+54*100
=100(53+54)
=10700
2. 7.5*43+19*2.5=2.5(43*3+19)=2.5(129+19)=370
3. 1994+199.4+19.94+1.994=1.994(1000+100+10+1)=1.994*1111=2215.334
4. 100+99+98-97-96-95+…+10+9+8-7-6-5+4+3+2-1
=(3+3+3)*16+4+3+2-1
=152
5. 53*46+71*54+82*54=53*46+(71+82)*54=53*46+153+54
=53*46+(100+53)*54
=53*46+54*100+53*54
=53*(46+54)+54*100
=53*100+54*100
=100(53+54)
=10700
1×1.111111×1.111111
计算:999999×999999+1999999= ___ .
222222*999999=?
111111-999999=
999999+777777+888888=?能简算吗
999999+888888+111111+555555=?
111111×999999=______.
计算:111111×999999+999999×777777=______.
999999×999999-999999+99999
999999x777778+333333x666666=?简便运算
999999+999999等于几
9999999+999999+99999+9999+999+99+9=