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用递等式计算,能简便的要简便240÷15÷4129+318+712×73×5700-300÷25(614+346)÷4894×(205-188)
题目详情
用递等式计算,能简便的要简便 240÷15÷4 | 129+318+71 | 2×73×5 |
700-300÷25 | (614+346)÷48 | 94×(205-188) |
▼优质解答
答案和解析
(1)240÷15÷4,
=240÷(15×4),
=240÷60,
=4;
(2)129+318+71,
=318+(129+71),
=318+200,
=518;
(3)2×73×5,
=73×(2×5),
=73×10,
=730;
(4)700-300÷25,
=700-12,
=688;
(5)(614+346)÷48,
=960÷48,
=20;
(6)94×(205-188),
=94×17,
=1598.
=240÷(15×4),
=240÷60,
=4;
(2)129+318+71,
=318+(129+71),
=318+200,
=518;
(3)2×73×5,
=73×(2×5),
=73×10,
=730;
(4)700-300÷25,
=700-12,
=688;
(5)(614+346)÷48,
=960÷48,
=20;
(6)94×(205-188),
=94×17,
=1598.
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