计算下面各题(能简算的要简算)(1)6696÷62-6.5×10;(2)3-2.81+4-3.19;(3)[1-(18+5

2024-11-24 22:55:02
推荐回答(1个)
回答1:

(1)6696÷62-6.5×10
=108-65
=43;

(2)3-2.81+4-3.19
=3+4-3.19-2.81
=(3+4)-(3.19+2.81)
=7-6
=1;

(3)[1-(

1
8
+
5
16
)]÷
1
8

=[1-
7
16
1
8

=
9
16
÷
1
8

=
9
2


(4)
1
2
+
8
9
×
3
4

=
1
2
+
2
3

=
7
6


(5)0.6×47+52×
3
5
+60%
=0.6×(47+52+1)
=0.6×100
=60.