Question

0.7×十一分之三-6.6×七分之三-1.1×七分之三+0.7×十一分之八 简便计算

Answer 1

0.7×十一分之三-6.6×七分之三-1.1×七分之三+0.7×十一分之八

=0.7×（3/11+8/11）-（6.6+1.1）×3/7
=0.7-7.7×3/7
=0.7-3.3
=-2.6

回答完毕

追问

你确定吗

追答

绝对正确

Answer 2

简便计算0.7×3/11-6.6×3/7-1.1×3/7+0.7×十8/11

解：原式=0.7*（3/11+8/11)-3/7(6.6+1.1)
=0.7-3/7*7.7
=0.7-3.3
=-2.6

Answer 3

0.7×（3/11）-6.6×(3/7)-1.1×(3/7)+0.7×(8/11)
=0.7×(3/11+8/11)-(3/7)×(6.6+1.1)
=0.7×1-7.7×（3/7）
=0.7-3.3
=-2.6

Answer 4

0.7×十一分之三-6.6×七分之三-1.1×七分之三+0.7×十一分之八
=0.7×(3/11+8/11)-1.1×18/7-1.1×3/7
=0.7×1-1.1×(18/7+3/7)
=0.7-3.3
=-2.6