题目内容

脱式计算.(能简算的要简算.)
(12-13 )÷13+16 19÷(34+56 ) 551114÷11
0.6×1825+60%×625+35×125 (13+18-16 )×24 5×(215+120 )-512.

(1)(12-13)÷13+16,
=(-1)÷13+16,
=-
1
13
+16,
=15
12
13


(2)19÷(34+56),
=19÷90,
=
19
90


(3)551114÷11,
=(551111+3)÷11,
=(551111+3)×
1
11

=551111×
1
11
+3×
1
11

=50101+
3
11

=50101
3
11


(4)0.6×1825+60%×625+35×125,
=0.6×1825+0.6×625+35×125,
=0.6×(1825+625)+35×125,
=0.6×2450+4375,
=1470+4375,
=5845;


(5)(13+18-16)×24,
=(31-16)×24,
=15×24,
=360;

(6)5×(215+120)-512,
=5×335-512,
=1675-512,
=1163.
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