Measure the circumference of a math book.

Estimate first, then measure and calculate their perimeters.

It is estimated that the circumference of the cover of the math exercise book is 60 cm 70 cm, the circumference of the desktop is 220 cm 240 cm, and the circumference of your sole is 40 cm 45 cm, so the answers are: 60 cm, 70 cm, 220 cm, 240 cm, 40 cm, 45 cm.

This paper briefly introduces the principles of determining the contents of compulsory courses and elective courses in "Mathematics Curriculum Standards for Ordinary Senior High Schools (Experiments)"

Thank you for providing several books on physics, mathematics and information for the first year of high school competition.

What are the classifications of mathematics classes for learning and thinking?

I want to know 18 when can I get the answer for the entrance examination for Mathematics III? When can I find the real question?

Purchase price algorithm in mathematics

I finally met the prose of the sea.

Yang Chao 139 Why is it called 139?

202 1 Several Problems in College Entrance Examination

Perimeter and area of primary school mathematics

What is the full score of Liaocheng college entrance examination in Shandong Province?