问题 解答题
递等式计算,能简算的要简算
0.11×1.8+8.2×0.11 0.8×(3.2-2.99÷2.3)(8.1-5.4)÷3.6+85.7.
答案

(1)0.11×1.8+8.2×0.11,

=0.11×(1.8+8.2),

=0.11×10,

=1.1;

(2)0.8×(3.2-2.99÷2.3),

=0.8×(3.2-1.3),

=0.8×1.9,

=1.52;

(3)(8.1-5.4)÷3.6+85.7,

=2.7÷3.6+85.7,

=0.75+85.7,

=86.45.

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