题目内容
| 35×6×8 | 36×9×2 | (25+45)×6 |
| 15×4×7 | 125×8×6 | 102×4×5 |
分析:(1)(2)(4)(5)按照从左到右的顺序计算;
(3)先算小括号里面的加法,再算括号外的乘法;
(6)运用乘法结合律简算.
(3)先算小括号里面的加法,再算括号外的乘法;
(6)运用乘法结合律简算.
解答:解:(1)35×6×8
=210×8
=1680;
(2)36×9×2
=324×2
=648;
(3)(25+45)×6
=70×6
=420;
(4)15×4×7
=60×7
=420;
(5)125×8×6
=1000×6
=6000;
(6)102×4×5
=102×(4×5)
=102×20
=2040.
=210×8
=1680;
(2)36×9×2
=324×2
=648;
(3)(25+45)×6
=70×6
=420;
(4)15×4×7
=60×7
=420;
(5)125×8×6
=1000×6
=6000;
(6)102×4×5
=102×(4×5)
=102×20
=2040.
点评:本题考查了简单的四则混合运算,计算时先理清楚运算顺序,根据运算顺序逐步求解即可.
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