①250+210=460 ②250÷2=125 ③210÷2=105
④125+105=230 ⑤460-230=230 ⑥125-105=10
⑦250÷2-210÷2 ⑧(250+210)-230 ⑨(250+210)÷2
⑩答:他们两家的草莓一共能装230盒。
⑪答:他们两家的草莓一共能装460盒。
1.分步列式正确的是( )
A.①⑤ | B.②③④ | C.②③⑥ |
A.⑦ | B.⑧ | C.⑨ |
A.⑩ | B.⑪ |

同类型试题

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2


y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

