用简便方法计算7.2÷0.9+2.1 27.3÷1.2-8.8 9.6-2.4×3.5

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/09 17:19:37
用简便方法计算7.2÷0.9+2.1 27.3÷1.2-8.8 9.6-2.4×3.5

用简便方法计算7.2÷0.9+2.1 27.3÷1.2-8.8 9.6-2.4×3.5
用简便方法计算7.2÷0.9+2.1 27.3÷1.2-8.8 9.6-2.4×3.5

用简便方法计算7.2÷0.9+2.1 27.3÷1.2-8.8 9.6-2.4×3.5
7.2÷0.9+2.1
=8+2.1
=10.1
27.3÷1.2-8.8
=27.3÷0.3÷4-8.8
=22.75-8.8
=13.95
9.6-2.4×3.5
=2.4×4-2.4×3.5
=2.4×(4-3.5)
=2.4×0.5
=2.4÷2
=1.2