题目内容
脱式计算.
280-165÷5
104×6÷3
456÷3+162.
280-165÷5
104×6÷3
456÷3+162.
①280-165÷5
=280-33
=247
②104×6÷3
=624÷3
=208
③456÷3+162
=152+162
=314
=280-33
=247
②104×6÷3
=624÷3
=208
③456÷3+162
=152+162
=314
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