Current location - Training Enrollment Network - Mathematics courses - The answers to the exercises on the third page of the first volume of the seventh grade mathematics textbook published by People's Education Press.
The answers to the exercises on the third page of the first volume of the seventh grade mathematics textbook published by People's Education Press.
Answer: The third page of the first volume of the seventh grade mathematics textbook published by People's Education Press answers to the exercises:
1.20 10 year is+108.7mm; In 2009, it was-81.5 mm; In 2008, it was+53.5mm.
2. The object moved again-1 m, that is to say, the object moved to the left 1 m, and then the object returned to its original position.