问题
解答题
|
答案
(1)(15.6+9.44)×0.9,
=25.04×0.9,
=22.536;
(2)1.5×1.3×4,
=1.3×(1.5×4),
=1.3×6,
=7.8;
(3)2.7+3.71+2.29+7.3,
=(2.7+7.3)+(3.71+2.29),
=10+6,
=16.
|
(1)(15.6+9.44)×0.9,
=25.04×0.9,
=22.536;
(2)1.5×1.3×4,
=1.3×(1.5×4),
=1.3×6,
=7.8;
(3)2.7+3.71+2.29+7.3,
=(2.7+7.3)+(3.71+2.29),
=10+6,
=16.