①5+5= ②8-3= ③9+1= ④10-8=
⑤6-4= ⑥4+1= ⑦0+10= ⑧9-4=
⑨4+6-5= ⑩6-3-2= ⑪8-7+1= ⑫8-2+2=
⑬5+2+3= ⑭1+3+4= ⑮0+9+1= ⑯5-0-4=
得数是10:________ 得数是8:________ 得数是5:________
得数是2:________ 得数是1:________

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

