Math Warm-ups 9-12

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Tags

CCSS.7.EE.A.1

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.

Tags

CCSS.7.EE.B.4A

4x + 7 = 23

• x = 16
• x = 4
• x = 9
• x = 12

Tags

CCSS.7.EE.B.4A

Sharon makes money by commission rates. She gets 17% of everything she sells. If Sharon sold $37000 worth of items this month, what is her salary for the month?

• $14,800
• $5,180
• $629
• $6,290

Tags

CCSS.6.RP.A.3C

Amelia sells jewelry.  She make a total of 12% of commission off of her sales.  How much commission Amelia make when she sells $22,540 worth of jewelry.

• 13,780.80
• $450.80
• $2,704.80
• $304.80

A water tank holds 45 gallons. Another one can hold  25% more. How many gallons can the second one hold?

• 11.25
• 56.25
• 33.75
• 45.5

Tags

CCSS.6.RP.A.3C

find the area of the circle below.

• 100 cm
• 225 cm
• 9 cm
• 28.26 cm

Tags

CCSS.7.G.B.4

What is the radius?

• 18
• 72
• 38
• 14

Tags

CCSS.7.G.B.4

Is this a correct answer?

• Yes, the student correctly added.
• No, you cannot add unlike denominators
• No, 5 + 7 is not 12
• No, 2 + 3 is not 5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

40+(72÷9)÷8

• 49
• 25
• 41
• 15

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2