题目内容
脱式计算.
| (36+24)×(72÷4)= | 75+240÷60-15= | 31×(16-276÷23)= |
(1)(36+24)×(72÷4),
=60×18,
=1080;
(2)75+240÷60-15,
=75+4-15,
=79-15,
=64;
(3)31×(16-276÷23),
=31×(16-12),
=31×4,
=124.
=60×18,
=1080;
(2)75+240÷60-15,
=75+4-15,
=79-15,
=64;
(3)31×(16-276÷23),
=31×(16-12),
=31×4,
=124.
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