题目内容
(2012?团风县模拟)(1)1498+1068÷89 (2)4.2÷1.5-0.36 (3)0.54×1.75+8.25×0.54.
分析:(1)先算除法,后算加法;
(2)先算除法,后算减法;
(3)先算乘法,后算加法.
(2)先算除法,后算减法;
(3)先算乘法,后算加法.
解答:解:(1)1498+1068÷89
=1498+12
=1510;
(2)4.2÷1.5-0.36
=2.8-0.36
=2.44;
(3)0.54×1.75+8.25×0.54
=0.945+4.455
=5.4;
故答案为1510;2.44;5.4.
=1498+12
=1510;
(2)4.2÷1.5-0.36
=2.8-0.36
=2.44;
(3)0.54×1.75+8.25×0.54
=0.945+4.455
=5.4;
故答案为1510;2.44;5.4.
点评:此题考查四则混合运算,要先分析含有哪些运算,再按运算顺序计算.
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