Solve for Unknown Number

Solve the equation: 
x + 7 = 12

• x = 5

• x = 19

• x = -5

• x = 84

Tags

CCSS.6.EE.B.7

Solve the following equation:

50 + n = 75

Tags

CCSS.1.OA.D.8

36 = ? x 9

• 5

• 4

• 3

• 6

Tags

CCSS.3.OA.A.4

Ms. Jenkins was arranging chairs for a school awards assembly. Each row contained 15 chairs. if there were 21 rows, how many chairs had to be arranged?

Tags

CCSS.3.OA.A.3

Edwina bought a book for $13. She now has $47. How much money did Edwina have before she bought the book?

• $21

• $60

• $34

• $73

Tags

CCSS.3.OA.D.8

580 = 620 - x

Find the value of x

• 40

• 30

• 10

• 20

Tags

CCSS.6.EE.B.7

9 X n = 36

• 4

• 3

• 5

• 6

Tags

CCSS.3.OA.A.4

A school band maraches in rows at a parade. There is a total of 35 band members. There are 5 members in each row. How many row of band members are there? Let "r" stand for the number of rows of band members. Choose ALL the equations that can be used to solve the problem.

• 35 = r x 5

• r = 35 x 5

• r = 5 x 35

• r = 35 / 5

Tags

CCSS.3.OA.A.3

What is the correct equation for the problem? You had some candy. Your little brother steals 15 pieces. Now you have 12 pieces left. How much candy did you have to start with?

• c - 15 = 12

• c + 15 = 12

• 15 - 12 = c

• 15 - c = 12

Tags

CCSS.HSA.CED.A.3

3 x W = 12

• w= 3

• w = 5

• w = 4

Tags

CCSS.3.OA.A.4