9/10×2.7+6.3÷10/9+0.9

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/19 06:59:44
9/10×2.7+6.3÷10/9+0.99/10×2.7+6.3÷10/9+0.99/10×2.7+6.3÷10/9+0.99/10×2.7+6.3÷10/9+0.9=9/10×2.7+6.3×9/

9/10×2.7+6.3÷10/9+0.9
9/10×2.7+6.3÷10/9+0.9

9/10×2.7+6.3÷10/9+0.9
9/10×2.7+6.3÷10/9+0.9
=9/10×2.7+6.3×9/10+9/10
=9/10×(2.7+6.3+1)
=9/10×10
=9

9/10×2.7+6.3÷10/9+0.9
=0.9x2.7+6.3x0.9+0.9x1
=0.9x(2.7+6.3+1)
=0.9x10
=9