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7÷0.01="________" 10.2+8%="________" 2.9
101="________" 6.5+9.5+3.5="________" 0.7 0.4÷0.7 0.4=________31725-0÷（9-4825）="________" 0.88+0.12="________" 452+98="________" 0.25
0.4="________" 1.25 8=________640÷16="________" 5.01﹣1.8="________"
÷ 
="________" 
﹣ 
="________" 
﹣ =________
﹣ ="________" 
="________" 12+ ="________" 
+ ="________" 8﹣ 
=________
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
