题目内容

计算
107×5-2196×19×556+19×7
9×(25+55)(1145-1025)÷472÷8×16.
①107×5-219,
=535-219,
=316;

②6×19×5,
=(6×5)×19,
=30×19,
=570;

③56+19×7,
=56+133,
=189;

④9×(25+55),
=9×80,
=720;

⑤(1145-1025)÷4,
=120÷4,
=30;

⑥72÷8×16,
=9×16,
=144.
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