7th Module 2 Topic 1 Test

Question #1. Use a number line to determine the sum –7 + 10.

Question #2. Use a number line to determine the sum –5 + (–9).

Question #3 - Write a number sentence to represent the model. ***DO not include the sum, just the equation.

Question 3b - Explain how you determined the sum to be -7

#4 Explain how to find the sum when you add together 1 positive number and 1 negative number.

#5. –19 + ___= –48

#6 ___+ 13 = –8

#7 Explain how you could use a number line to determine the number that is 7 more than –9. What is the number?

#8. Write a number sentence to represent the model.

#8b Explain how you determined the number sentence (from problem #8)