(1)6746+3845= (2)65431-6789=
(3)36753+21498= (4)1743+4329=
(5)10700+99800= (6)73579-4086=
(7)282-1378÷26= (8)7128÷(45+21)=
(9)5876÷(13×4)= (10)625×(280÷35)=
(11)94×86÷47= (12)(394+5477)÷57=
(13)8450÷25-249 = (14)6396÷(520-438)=
(15)5871 ÷57= (16)338-249=

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

