数学题,简算,过程要仔细,好的给分
问题描述:
数学题,简算,过程要仔细,好的给分
(1)2.3x0.16÷2.3x0.16(2)1.8x0.9+0.18-18x0.1 (3)1.8x0.9+0.18
答
(1)2.3x0.16÷2.3x0.16
=2.3÷2.3 x 0.16÷0.16
= 1x1
=1
(2)1.8x0.9+0.18-18x0.1
=1.8 x (0.9 + 0.1 - 1)
=1.8 x 0
=0
(3)1.8x0.9+0.18
=1.8 x (0.9 + 0.1)
=1.8 x 1
=1.8