题目内容
| ①75+225÷(20-5) | ②(46-32)×(7+25) |
| ③(124-85)×12÷13 | ④235-135÷5. |
①75+225÷(20-5),
=75+225÷15,
=75+15,
=90;
②(46-32)×(7+25),
=14×32,
=448;
③(124-85)×12÷13,
=39×12÷13,
=468÷13,
=36;
④235-135÷5,
=235-27,
=208.
=75+225÷15,
=75+15,
=90;
②(46-32)×(7+25),
=14×32,
=448;
③(124-85)×12÷13,
=39×12÷13,
=468÷13,
=36;
④235-135÷5,
=235-27,
=208.
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