题目内容
2001-1998÷3 | 1481+182×5 | 456÷8×4 |
2340÷3÷5 | 1620÷9÷9 | 5320÷7×8. |
解:(1)2001-1998÷3,
=2001-666,
=1335;
(2)1481+182×5,
=1481+910,
=2391;
(3)456÷8×4,
=57×4,
=228;
(4)2340÷3÷5,
=780÷5,
=156;
(5)1620÷9÷9,
=180÷9,
=20;
(6)5320÷7×8,
=760×8,
=6080.
分析:(1)先算除法,再算减法,
(2)先算乘法,再算加法,
(3)从左向右进行计算即可,
(4)从左向右进行计算即可,
(5)从左向右进行计算即可,
(6)从左向右进行计算即可.
点评:此题考查了整数四则混合运算的运算顺序.
=2001-666,
=1335;
(2)1481+182×5,
=1481+910,
=2391;
(3)456÷8×4,
=57×4,
=228;
(4)2340÷3÷5,
=780÷5,
=156;
(5)1620÷9÷9,
=180÷9,
=20;
(6)5320÷7×8,
=760×8,
=6080.
分析:(1)先算除法,再算减法,
(2)先算乘法,再算加法,
(3)从左向右进行计算即可,
(4)从左向右进行计算即可,
(5)从左向右进行计算即可,
(6)从左向右进行计算即可.
点评:此题考查了整数四则混合运算的运算顺序.
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