Adding Integers Using Counters

What is a zero pair? 

• Two negatives
• Two positives
• One negative, one positive

Tags

CCSS.7.NS.A.1B

Which equation represents the 2-color counters shown in the image? (Yellow is Positive and Red is Negative)

• -4 + 5 = -1

• 4 + 5 = 9

• 4 + (-5)= -1

• -5 - 4 = -9

Tags

CCSS.7.NS.A.1C

Which addition equation matches the problem modeled below? (Yellow is positive and Red is negative)

• -2 + -4 = -6

• 2 + -4 = -2

• 4 + 2 = 6

Tags

CCSS.7.NS.A.1C

• 4 + 1 = 5
• 4 - (-1) = 5
• 4 + -1 = 3

Tags

CCSS.7.NS.A.1C

-2 + 4 

Tags

CCSS.7.NS.A.1C

3 + -7

• 10
• 4
• -10
• -4

Tags

CCSS.7.NS.A.1C

Bob lost 5 points on page one of his math test and he lost 9 points on page two of his math test.  Which equation best describes Bob progress on his math test?

• 5 + 9 = 14
• -5 + -9 = -4
• -5 + -9 = -14
• 5 + -9 = -4

Tags

CCSS.7.NS.A.1C

A football team gained 9 yards on one play and then lost 2 yards on the next. Write a sum of integers to find the overall change in field position.

• -9 + (-2) = -11
• 9 + (-2) = 7
• 9 + (-2) = -7
• -9 + 2 = -7

Tags

CCSS.7.NS.A.1C

-2 + 9

• -11
• -7
• 7
• 11

Tags

CCSS.7.NS.A.1C

-7 + -4

Tags

CCSS.7.NS.A.1C