(1)1张1元可以换成( )张2角.
(2)1张1元可以换成( )张5角、( )张2角和( )张1角.
(3)1张5元可以换成( )张2元和( )张1元.
(4)1张10元可以换成( )张2元.
(5)1张10元可以换成( )张5元和( )张1元.
(6)1张20元可以换成( )张5元.
(7)1张50元可以换成( )张5元.
(8)1张50元可以换成( )张20元和( )张10元.
(9)2张100元可以换成( )张20元.
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