题目内容
(4444×
+8888×
-4444×
)÷
-2440的计算结果是 .
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考点:分数的巧算
专题:计算问题(巧算速算)
分析:括号内运用乘法分配律计算,原式变为4444×
÷
-2440,先算除法,再算乘法,最后算减法,解决问题.
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解答:
解:(4444×
+8888×
-4444×
)÷
-2440
=4444×(
+
-
)÷
-2440
=4444×
÷
-2440
=4444×(
÷
)-2440
=4444-2440
=2004
故答案为:2004.
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=4444×(
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=4444×
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=4444×(
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=4444-2440
=2004
故答案为:2004.
点评:仔细分析数据,运用运算定律或运算技巧,进行简便计算.
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