Eureka Lesson 15

Consider the rectangle made up of two smaller rectangles with lengths 3 units and 7 units, respectively. Which expressions represent the total area of the given rectangle in square units? Choose all that apply.

• 3x(7x)

• 3x + 7x

• 10x

• 7x - 3x

• (3 + 7)(x)

Tags

CCSS.MATH.CONTENT.6.EE.A.3

equivalent expression for 6c

• 6+c

• c+c+c+c+c+c

What is the equivalent expression for p+p+p+p+p?

• 5+p

• 5p

What is the equivalent expression for the sum of four 't' terms?

• 4t

• t/4

• 4+t

What is the equivalent expression for the sum of seven 'f' terms?

• 7+f

• 7f

Which expressions can be used to represent the perimeter of the square? Choose all that apply.

• y + y + y + y

• 2y

• 4y

Scott says that x + x + x + x + x + m + m can be written as 2m + 5x. Do you agree with Scott's statement?

• Yes, because the distributive property can be used.

• No, because the terms are not in the correct order.

• Yes, because the commutative property of addition allows it.

• No, because the coefficients are not correctly combined.

Jada says that 16p + 3p + p + 10p is equivalent to 29p because (16 + 3 + 10)p = 29p. What mistake did Jada make?

• She added the coefficients of every term correctly.

• She should have found (16 + 3 + 1 + 10)p.

• She did not use the distributive property correctly.

• She combined the terms in the wrong order.

What is the result when you combine like terms in the expression 25f - f - f?

• 23f

• 25f

• 27f

• 22f

Combine like terms in the expression 12g + 5 + 2g + 5g + 2.

• 19g + 7

• 19g + 9

• 17g + 7

• 20g + 7