East China Normal University Edition mathematics one lesson one practice 2 5.6.7.

Question 5: 217
Question six: five out of seven
Question 7: 1080
Question 8: 750

East China Normal University Edition 2010 Autumn sixth grade mathematics lesson one practice 4

2. B.14cm. 3.7 + 2 = 9cm 3.14 * (the square of 9-7) = 100.484.25.12 divided by 3.14 divided by 2 = 4.14

Sixth grade next semester, East China Normal University Edition, one lesson, one exercise, one topic, mathematics! Urgent!
The numbers represented by three ABC points on the number axis are - 1.4, - 3 / 8, 4 / 5 [negative 1.4, negative three eighths, negative four fifths]
Try to compare the size of line AB and line BC
It's only sixth grade
Just learned the addition and subtraction of negative numbers
It's a process

AB= -3/8 -（-1.4）=1.025
BC=-3/8 -(-4/5)=0.425

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