Current location - Training Enrollment Network - Mathematics courses - How to do the fifth question on page 78 of the special training for the first grade mathematics synchronous class in primary school?
How to do the fifth question on page 78 of the special training for the first grade mathematics synchronous class in primary school?
Group 1: 8+8=3+ 13

Group 2: 9+ 19=4+(24)

Because (1+3)-3= 1.

(2+4)-4=2

The third group: 6+7=(5)+(8)

8-5=3 8 8 3 138 and 8 face to face, 3 and 13 face to face. Group 2: 9 and 19 face to face, 4 and 24 face to face. Group 3: 6 and 7 are opposite to 1 and 12. . . . Write it line by line. The first line is negative 5. The second line is plus 5.

Related articles
  • Sixth grade diary 100 words, 10 articles.
  • Mathematics newspaper report
  • What mathematics works are worth recommending abroad?
  • This incident really touched me.
  • What will preschool students learn in mathematics next semester?
  • The quadratic root of eighth grade mathematics
  • Beijing senior high school entrance examination is a combination of two exams. How to take the exam?
  • What is the content of the independent entrance examination of Guangdong Foreign Language Arts Teachers College?
  • What elementary school mathematics knowledge have you learned from grade one to grade five?
  • Playing games with children makes them smarter. Which games work best?

    • copyright 2024 Training Enrollment Network All rights reserved