题目内容
计算下列各题
200×7-900
123×3+131
72÷8+228
350-120×2.
200×7-900
123×3+131
72÷8+228
350-120×2.
(1)200×7-900
=1400-900,
=500;
(2)123×3+131
=369+131,
=500;
(3)72÷8+228
=9+228,
=237;
(4)350-120×2
=350-240,
=110.
=1400-900,
=500;
(2)123×3+131
=369+131,
=500;
(3)72÷8+228
=9+228,
=237;
(4)350-120×2
=350-240,
=110.
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