题目内容

3.6+20+5.416.7-5.4-4.6
(16+16+16+16)×25728×79+272×79
4000÷125×8(214-98÷14)×12.
(1)3.6+20+5.4
=3.6+5.4+20
=29;

(2)16.7-5.4-4.6
=16.7-(5.4+4.6)
=16.7-10
=6.7;

(3)(16+16+16+16)×25
=16×(4×25)
=16×100
=1600;

(4)728×79+272×79
=(728+272)×79
=1000×79
=79000;

(5)4000÷125×8
=32×8
=256;

(6)(214-98÷14)×12
=(214-7)×12
=207×12
=2484.
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