(6又1/2)*(+4)+(4.28)*4又1/2-(-4.5)*(5.72)急

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/29 04:21:30
(6又1/2)*(+4)+(4.28)*4又1/2-(-4.5)*(5.72)急(6又1/2)*(+4)+(4.28)*4又1/2-(-4.5)*(5.72)急(6又1/2)*(+4)+(4.28)*

(6又1/2)*(+4)+(4.28)*4又1/2-(-4.5)*(5.72)急
(6又1/2)*(+4)+(4.28)*4又1/2-(-4.5)*(5.72)

(6又1/2)*(+4)+(4.28)*4又1/2-(-4.5)*(5.72)急
6½×4+4.28×4½-(-4.5)×5.72
原式=26+19.26-(-25.74)
=45.26+25.74
=71