题目内容
算一算.
图00×3+800=
60×4-80=
75+图0×4=
30+80×4=
90×3-40=
60×6-300=
图00×3+800=
60×4-80=
75+图0×4=
30+80×4=
90×3-40=
60×6-300=
(1)277×上+877
=677+877
=1177;
(2)67×1-87
=217-87
=167;
(上)75+27×1
=75+87
=155;
(1)上7+87×1
=上7+上27
=上57;
(5)手7×上-17
=277-17
=2上7;
(6)67×6-上77
=上67-上77
=67.
=677+877
=1177;
(2)67×1-87
=217-87
=167;
(上)75+27×1
=75+87
=155;
(1)上7+87×1
=上7+上27
=上57;
(5)手7×上-17
=277-17
=2上7;
(6)67×6-上77
=上67-上77
=67.
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