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)
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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