5th Grade Summer Recap

+/- Rational Numbers

100

-5+8

3

200

7.4 - 10.2

-2.8

300

-(3/4) + (1/2)

-1/4

400

-6.5 + -2.7

-9.2

500

-(5/6) - (3/4)

-19/12 or -1 7/12

*&/ Rational Numbers

100

-4 * 6

-24

200

3.5 * -2

-7

300

(2/3) * (-9/4)

-3/2

400

-8 ÷ (1/2)

-16

500

-(3/5) ÷ (9/10)

-2/3

Expressions

100

3x + 5x

8x

200

7y - 2y + 4

5y + 4

300

4(x+3)

4x + 12

400

Factor 6x + 18

6(x+3)

500

3(2x−4) + 5x

11x - 12

Equations

100

x + 7 = 12

x = 5

200

x - 4 = 9

x = 13

300

3x = 21

x = 7

400

2x+6=14

x = 4

500

5x−10=20

x = 6

Mystery

100

I am a number.
If you add me to -6, you get 2.
What number am I?

8

200

True or False:
The product of two negative numbers is always negative.

False

300

Which is greater: -1/2 or -3/4

-1/2

400

I am thinking of a number.
Multiply it by 3 and subtract 2.
The result is 10.
What number am I thinking of?

4

500

A student says:

-2(3x+1) = -6x+1

What mistake did the student make?

They forgot to distribute -2 to both terms.

−2(3x+1) = −6x−2