Adding Using Chips and N. line

Match the integer addition problem with the graph.

• 4 + (-5) = -1
• -5 + 4 = -1
• 4 + (-5) = 0
• None of these

Look at the number line.

• –2 + 4 =  –2
• –2 + (–4) =  –6
• 4 + (–6) =  –2
• 4 + (–2) =  6

Match the integer addition problem with the graph.

• 6 + (-2) = 6
• -2 + 6 = 0
• 6 + (-2) = 4
• None of these.

Use the counters to find the sum of the integers. 

• -5
• -7
• 5
• 7

• 7
• 5
• -7
• -5

Which model represents 3 + (-1)?

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What is the answer for this model?

What is the answer for this model?

What is the answer for this model?

What equation is modeled?

• -7 + 8 =1

• -7 + 9 = 1

• 1 + -7 = -7

• 8 + -7 = 1