计算. 12.96÷4.5÷0.32 1.4×2.15-1.5×1.4 37.6÷(1.99+0.51) (25.2-0.8)÷0.05.
第1个回答 2020-07-10
(1)12.96÷4.5÷0.32
=2.88÷0.32
=9;
(2)1.4×2.15-1.5×1.4
=1.4×(2.15-1.5)
=1.4×0.65
=0.91;
(3)37.6÷(1.99+0.51)
=37.6÷2.5
=15.04;
(4)(25.2-0.8)÷0.05
=24.4÷0.05
=488.
=2.88÷0.32
=9;
(2)1.4×2.15-1.5×1.4
=1.4×(2.15-1.5)
=1.4×0.65
=0.91;
(3)37.6÷(1.99+0.51)
=37.6÷2.5
=15.04;
(4)(25.2-0.8)÷0.05
=24.4÷0.05
=488.