问题 解答题
计算下面各题(能简算的要简算)
(1)7.05×23.7+7.05×76.3
(2)0.125×3.2×2.5 (3)7.8-1.9+8.2-8.1
(4)44.28÷0.9÷4.1 (5)9.07-22.78÷3.4(6)2.05÷0.82﹢33.6.
答案

(1)7.05×23.7+7.05×76.3

=(23.7+76.3)×7.05,

=100×7.05,

=705;

(2)0.125×3.2×2.5

=(0.125×8)×(0.4×2.5),

=1×1,

=1;

(3)7.8-1.9+8.2-8.1

=(7.8+8.2)-(1.9+8.1),

=16-10,

=6;

(4)44.28÷0.9÷4.1

=49.2÷4.1,

=12;

(5)9.07-22.78÷3.4

=9.07-6.7,

=2.37;

(6)2.05÷0.82﹢33.6

=2.5+33.6,

=36.1.

单项选择题
选择题