(1)怎样列算示?( )
(2)自己尝试补充完下面的笔算:
(3)想:两位数乘三位数的乘法法则:
①先用两位数( )位上的数去乘另一个因数,得数的末位和两位数的( )位对齐.
②再用两位数( )位上的数去乘另一个因数,得数的末位和两位数的( )位对齐.
③然后把( )次乘得的数( )起来.
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