问题 解答题
脱式计算.
(1)10962÷54-105
(2)0.25×(4.8-7.5÷3)
(3)9.07×99+9.07
(4)
2
7
×
8
9
÷
8
7
答案

(1)10962÷54-105,

=203-105,

=98;

(2)0.25×(4.8-7.5÷3),

=0.25×(4.8-2.5),

=0.25×2.3,

=0.575;

(3)9.07×99+9.07,

=9.07×(99+1),

=9.07×100,

=907;

(4)

2
7
×
8
9
÷
8
7

=

16
63
÷
8
7

=

2
9

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