![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
小明和小红一共折了15颗星星,其中6颗红色。小明折了7颗,小红折了多少颗正确的算式是()
A.15 - 6
B.15 - 7
C.15 - 6 - 7
D.6 + 7
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、15 - 7
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.15 - 6
B.15 - 7
C.15 - 6 - 7
D.6 + 7
B、15 - 7
A.(X÷3+ X ÷2+ X +10)×2/3
B.(X÷3+10+X÷2+ X)×2/3
C.(2 X +10)÷2/3
D.(0.5X +X +1.5X -10)÷2/3
A.小明在放学回家的路上,看见小亮闯红灯进行劝阻
B.小丽看见小雨随地吐痰,上前告诉他不能随地吐痰
C.小红看见同学折了一枝花,她也随手折了一枝花
A.①②
B.②③
C.②④
D.③④