2.25×7.2+2.8÷1/9简便运算!
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/23 13:23:49
2.25×7.2+2.8÷1/9简便运算!
2.25×7.2+2.8÷1/9简便运算!
2.25×7.2+2.8÷1/9简便运算!
原式=2.25×4×1.8+2.8×9
=9×1.8+2.8×9
=4.6×9
=41.4
2.25×7.2+2.8÷1/9简便运算!
2.25×7.2+2.8÷1/9简便运算!
2.25×7.2+2.8÷1/9简便运算!
原式=2.25×4×1.8+2.8×9
=9×1.8+2.8×9
=4.6×9
=41.4