题目内容
我会比大小.(在横线上填上“>”“<”或“=”)
(499+237)÷8
(813-288)÷5
816÷4+32
520÷4+78
(499+237)÷8
>
>
(587-263)÷9(813-288)÷5
<
<
954÷9+39816÷4+32
<
<
549-450÷5520÷4+78
<
<
540-450÷9.分析:分别计算出左右两边的运算结果,然后比较即可.
解答:解:(1)(499+237)÷8,
=736÷8,
=92;
(587-263)÷9,
=324÷9,
=36;
92>36;
所以(499+237)÷8>(587-263)÷9;
(2)(813-288)÷5,
=525÷5,
=105;
954÷9+39,
=106+39,
=145;
105<145,
所以(813-288)÷5<954÷9+39;
(3)816÷4+32,
=204+32,
=236;
549-450÷5,
=549-90,
=459;
236<459,
所以816÷4+32<549-450÷5;
(4)520÷4+78,
=130+78,
=208;
540-450÷9,
=540-50,
=490;
208<490;
所以520÷4+78<540-450÷9.
故答案为:>,<,<,<.
=736÷8,
=92;
(587-263)÷9,
=324÷9,
=36;
92>36;
所以(499+237)÷8>(587-263)÷9;
(2)(813-288)÷5,
=525÷5,
=105;
954÷9+39,
=106+39,
=145;
105<145,
所以(813-288)÷5<954÷9+39;
(3)816÷4+32,
=204+32,
=236;
549-450÷5,
=549-90,
=459;
236<459,
所以816÷4+32<549-450÷5;
(4)520÷4+78,
=130+78,
=208;
540-450÷9,
=540-50,
=490;
208<490;
所以520÷4+78<540-450÷9.
故答案为:>,<,<,<.
点评:本题根据整数四则运算的顺序,计算出结果,再比较求解.
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