递等式计算(能巧算的要巧算).(1)412÷(607-36×14) (2)72×36+18×36 (3)80×[(325

递等式计算(能巧算的要巧算).
(1)412÷(607-36×14)
(2)72×36+18×36
(3)80×[(325+7)-304] (4)250×8-10000÷8
(5)125×6×8 (6)444×25
(7)[26/35
+
9
35
11
35] (8)[1/100
+
99
100
7
9].
**学胡同2324 1年前 已收到1个回答 举报

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(1)412÷(607-36×14),
=412÷(607-504),
=412÷103,
=4;

(2)72×36+18×36,
=(72+18)×36,
=90×36,
=3240;

(3)80×[(325+7)-304],
=80×[332-304],
=80×28,
=2240;

(4)250×8-10000÷8,
=2000-1250,
=750;

(5)125×6×8,
=125×8×6,
=1000×6,
=6000;

(6)444×25,
=111×(4×25),
=111×100,
=11100;

(7)[26/35+
9
35−
11
35],
=1-[11/35],
=[24/35];

(8)[1/100+
99
100−
7
9],
=1-[7/9],
=[2/7].

1年前

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