Gr.9 Mental Math Challenge Round 1

• 4

• 5

• 10

• 2

What is the value of x

5(2x-6)=20

• 25

• 5

• 12

• 4

Tags

CCSS.7.EE.B.4A

• -10, 2

• - 2 , - 4

• 6 , 4

• -12 , -2

Tags

CCSS.HSA-REI.B.4B

Solve

110 x 5300

• 350000

• 583000

• 5.3700

• 53500

Tags

CCSS.4.NBT.B.5

Find x in the system of equations

2x + 3y = 10

4x - 3y = 14

• x= 4

• x=2

• x=10

• x=-12

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• 2,021,039

• 218,730

• 3,012,009

• 4,021,039

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

• 0.014306203

• 0.1340620000

• 71243206

• 0.314240002

Tags

CCSS.5.NBT.B.7

A square balcony has a perimeter of 24 feet. Its area is 36 square feet. What are the dimensions of the balcony?

• 12 ft, 3 ft

• 4 ft, 2 ft

• 6 ft, 6 ft

• 2 ft, 18 ft

Tags

CCSS.3.MD.D.8

What is the slope of the line passing through the points

(0,4) (2,4)

• 2

• 0

• -1

• 1

Tags

CCSS.8.EE.B.5

• 110

• 1001

• 101

• 1000