问题 解答题
脱式计算,能简算的要简算.
97÷1+35.6+0×61375+450÷15×25
[4.5+(13×
3
8
+13×
3
8
)]÷
5
3
48×
9
16
+48×
7
16
+48×8
94.47-(94.47-86.555)3.42×76.3+76.3×5.76+9.18×23.7.
答案

(1)97÷1+35.6+0×6

=97+35.6+0,

=132.6;

(2)1375+450÷15×25

=1375+30×25,

=1375-750,

=625;

(3)[4.5+(13×

3
8
+13×
3
8
)]÷
5
3

=[4.5+(13×

3
8
×2)]÷
5
3

=[4.5+9.75]÷

5
3

=14.25×

3
5

=8.55;

(4)48×

9
16
+48×
7
16
+48×8

=(

7
16
+
9
16
+8)×48,

=9×48,

=432;

(5)94.47-(94.47-86.555)

=94.47-94.47+86.555,

=0+86.555,

=86.555;

(6)3.42×76.3+76.3×5.76+9.18×23.7

=(3.42+5.76)×76.3+9.18×23.7,

=9.18×76.3+9.18×23.7,

=(76.3+23.7)×9.18,

=100×9.18,

=918.

单项选择题
单项选择题