题目内容
计算
| 107×5-219 | 6×19×5 | 56+19×7 |
| 9×(25+55) | (1145-1025)÷4 | 72÷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.
=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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