> 数学 >
(+15)+(-21)=
-6+(+9)=
(+7)+(-7)=
(+41)+(+3)=
(-7)+(-4)=
人气:228 ℃ 时间:2020-05-14 19:01:49
解答
(+15)+(-21)= -6
-6+(+9)=3
(+7)+(-7)=0
(+41)+(+3)=44
(-7)+(-4)=-11一般这种算式答案会有正数吗
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版