Exploring Tape Diagrams and Equation Writing

What is the total length of the tape diagram discussed at the beginning?

• 10

• 15

• 12

• 20

If the length of one segment is 3, what is the equation formed by adding two unknown segments and this segment?

• 3x = 15

• x + x + 3 = 15

• x + 3 = 15

• 2x + 3 = 15

What is the simplified form of the equation x + x + 3 = 15?

• 2x = 15

• x = 15

• 2x + 3 = 15

• x + 3 = 15

Why can't we combine the terms 3 and 15 in the equation 2x + 3 = 15?

• They are variables

• They are not like terms

• They are on different sides of the equal sign

• They are constants

How many segments of length 2 are there in the tape diagram that equals 10?

• 3

• 4

• 5

• 6

What is the equation formed by adding two segments of length 2 and one segment of length 5?

• 2 + 2 + 5 = 10

• 2 + 5 = 7

• 2 + 2 + 5 = 7

• 2 + 2 + 5 = 9

What should you do if you get stumped on the next problem in Go Formative?

• Ask a friend

• Guess the answer

• Skip it

• Watch the rest of the video

What is the equation formed by adding a segment of length 4 and an unknown segment to equal 12?

• 4 + x = 12

• x = 12

• x + 4 = 12

• 4x = 12

What is the equation formed by adding three unknown segments to equal 21?

• x = 21

• x + x + x = 21

• x + 3 = 21

• 3x = 21

What is the simplified form of the equation x + x + x = 21?

• 2x = 21

• x = 21

• x + 3 = 21

• 3x = 21