小学四年级 数学 数学 请详细解答,谢谢! (2 18:50:14)

=3.76+4.7+(5.3+0.5)
=(3.76+0.5)+(4.7+5.3)
=4.26+10
=14.26

原式=3 + 4 + 5 + 3 * 0.7 + 0.16 =14.26

3.76+(1.24+3.46)+(1.54+4.26)
=(3.76+1.24)+(3.46+1.54)+4.26
=14.26

这个题目可以用拆分法计算.
3.76+4.7+5.8
=3.76+4.7+(5.3+0.5)
=(3.76+0.5)+(4.7+5.3)
=4.26+10
=14.26

3。76+4。7+5。8
=14.26

3.76+(1.24+3.46)+(1.54+4.26)
=(3.76+1.24)+(3.46+1.54)+4.26
=14.26
或者
3.76+(0.44+4.26)+(1.24+4.56)
=(3.76+1.24)+(3.46+1.54)+4.26
=14.26
或者
3.76+(5-0.3)+(5-0.2)
=(3.76-0.2-0.3)+(5+5)
=14.26