题目内容
想一想运算顺序,再算.
288÷12÷12 | 980-53×11 | 24×(64+36) | 350÷(35×2) |
分析:(1)根据除以的性质进行简算;
(2)先算乘法,再算减法;
(3)先算小括号里的加法,再算括号外的乘法;
(4)先算小括号里的乘法,再算括号外的除法.
(2)先算乘法,再算减法;
(3)先算小括号里的加法,再算括号外的乘法;
(4)先算小括号里的乘法,再算括号外的除法.
解答:解:(1)288÷12÷12,
=288÷(12×12),
=288÷144,
=2;
(2)980-53×11,
=980-583,
=397;
(3)24×(64+36),
=24×100,
=2400;
(4)350÷(35×2),
=350÷70,
=5.
=288÷(12×12),
=288÷144,
=2;
(2)980-53×11,
=980-583,
=397;
(3)24×(64+36),
=24×100,
=2400;
(4)350÷(35×2),
=350÷70,
=5.
点评:考查了整数四则混合运算的顺序,注意有小括号的要先算小括号里的运算.
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想一想运算顺序,再算.
288÷12÷12 | 980-53×11 | 24×(64+36) | 350÷(35×2) |