Current location - Training Enrollment Network - Mathematics courses - Senior one is doing math. Say what the following questions should be calculated first, and then, 12-54 =- on the horizontal line.
Senior one is doing math. Say what the following questions should be calculated first, and then, 12-54 =- on the horizontal line.
Senior one is doing math. Say what the following questions should be calculated first, and then, 12-5+4=
First 12-5=7, and then 7+4= 1 1.
12-5+4=7+4= 1 1
Senior one is doing math. Say what the following questions should be calculated first, and then, 12-5-4=