问题 解答题
递等式计算:
0.11×1.8+8.2×0.11
0.8×(3.2-2.99÷2.3)
5.4÷(3.94+0.86)×0.8(8.1-5.4)÷3.6+85.7.
答案

(1)0.11×1.8+8.2×0.11,

=(1.8+8.2)×0.11,

=10×0.11,

=1.1;

(2)0.8×(3.2-2.99÷2.3),

=0.8×(3.2-1.3),

=0.8×1.9,

=1.52;

(3)5.4÷(3.94+0.86)×0.8,

=5.4÷4.8×0.8,

=5.4÷(4.8÷0.8),

=5.4÷6,

=0.9;

(4)(8.1-5.4)÷3.6+85.7,

=2.7÷3.6+85.7,

=0.75+85.7,

=86.45.

单项选择题 B1型题
单项选择题 A2型题