Question

能简便的简便 6.3+3又7/8+3.7+6又1/8 752×1.25+4.145×12.5+0.

能简便的简便
6.3+3又7/8+3.7+6又1/8
752×1.25+4.145×12.5+0.0655×125
14×3/7+0.65×8/13-2/7×14+5/13×0.65
帮帮忙啦~不会写~

Answer 1

追答

你敢，如果帮到你请采纳，欢迎追问

Answer 2

6.3+3又7/8+3.7+6又1/8
=6.3+3.875+3.7+6.125
=(6.3+3.7)+(3.875+6.125)
=10+10
=20
752×1.25+4.145×12.5+0.0655×125
=1.25x(752+41.45+6.55)
=1.25x800
=1000
14×3/7+0.65×8/13-2/7×14+5/13×0.65
=14x(3/7-2/7)+0.65x(8/13+5/13)
=14x1/7+0.65x1
=2+0.65
=2.65

Answer 3

（1）6.3+3又7/8+3.7+6又1/8=（6.3+3.7）+（3又7/8+6又1/8）=10+10=20
（2）752×1.25+4.145×12.5+0.0655×125=752×1.25+41.45×1.25+6.55×1.25
=1.25×（752+41.45+6.55）=1.25×（752+48）=1.25*800=1.25*8*100=10*100=1000
（3）14×3/7+0.65×8/13-2/7×14+5/13×0.65
=（14×3/7-2/7×14）+（0.65×8/13+5/13×0.65）
=14*（3/7-2/7）+0.65*（8/13+5/13）=2+0.65=2.65