999×0.7+111×3.7648+473+527简便计算
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/10 23:02:23
999×0.7+111×3.7648+473+527简便计算
999×0.7+111×3.7
=111*(9*0.7)+111*3.7
=111*6.3+111*3.7
=111*(6.3+3.7)
=111*10
=1110
648+473+527
=648+(473+527)
=648+1000
=1648
再问: 我出的是一道题
再答: 999×0.7+111×3.7648+473+527 =111*(9*0.7)+111×3.7648+(473+527) =111*6.3+111×3.7648+1000 =111*10.0648+1000 =(100+10+1)*10.0648+1000 =100*10.0648+10*10.0648+1*10.0648+1000 =1006.48+100.648+10.0648+1000 =1107.128+1010.0648 =2117.1928
=111*(9*0.7)+111*3.7
=111*6.3+111*3.7
=111*(6.3+3.7)
=111*10
=1110
648+473+527
=648+(473+527)
=648+1000
=1648
再问: 我出的是一道题
再答: 999×0.7+111×3.7648+473+527 =111*(9*0.7)+111×3.7648+(473+527) =111*6.3+111×3.7648+1000 =111*10.0648+1000 =(100+10+1)*10.0648+1000 =100*10.0648+10*10.0648+1*10.0648+1000 =1006.48+100.648+10.0648+1000 =1107.128+1010.0648 =2117.1928