Operations on integers

Math Hospital-

What did the student do wrong in the problem?

• The student did not change the subtraction problem to an equivalent before solving the with tiles.

• The student did not cross off the correct amount of zero pairs.

• The student use the rule for addition.

• Nothing the problem is correct.

Tags

CCSS.7.NS.A.1B

Integers on the Number Line Q1H

Tags

CCSS.7.NS.A.1B

-8+4

• 12

• -4

• 0

• 4

Tags

CCSS.7.NS.A.1B

Solve: 
x - (-9) = 20

• 9
• 29
• 11
• 12

Tags

CCSS.7.NS.A.1B

Evaluate the expression. a=(-7) b= 2

What is a - b =

• -5

• 5

• 9

• -9

Tags

CCSS.7.NS.A.1B

What integer operation is being modeled?

• -2 + 6 = 4

• -2 + 2 = 0

• 4 - (-2) = 6

• 6 - 2 = 4

Tags

CCSS.7.NS.A.1B

What is the sum of -4 and -1 on a number line?

• -2

• 0

• -5

• -3

Tags

CCSS.7.NS.A.1B

What sum does the set of tiles model?

• (-4) + (+3) = -1

• (+4) + (-3) = -1

• (+4) + (-3) = +1

• (-4) + (+3) = +1

Tags

CCSS.7.NS.A.1B

What is this model representing?

• -3 + (-5)= -8

• 3 + 5 = 8

• -3 + 5 = 2

• 3 + (-5)= -2

Tags

CCSS.7.NS.A.1B

Which expression is modeled on this vertical number line?

• 6 + 2

• -6 + 2

• 6 + -2

• 6 + 4

Tags

CCSS.7.NS.A.1B