题目内容

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

(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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