小飞机 | 布娃娃 | 小汽车 | 积木 |
9元/架 | 6元/个 | ( )元/辆 | 8元/盒 |
1.小明拿54元钱可以买几架小飞机?
2.小军用42元钱买了6辆小汽车,一辆小汽车多少钱?
3.妈妈买4个布娃娃,付给售货员50元,应找回多少钱?
4.小明买3盒积木和1辆小汽车,一共花了多少钱?
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