7th Math Unit 2 Day 4 - 11/2

No More Number Line--You are given the following expression:

-24+18

a) Is our sum positive or negative? Why? Use math vocabulary.

CFS:

#1: Uses mathematical evidence to determine the sign of a sum

You are given the following expression:

-24+18

b) What is the sum? Write an addition equation.

"-24+18=______"

More Practice--You are given the following expression:

-3+75

a) Is the sum of the following expression positive or negative? Explain using math vocabulary.

"The sum is (positive / negative) because..."

CFS:

#1: Uses mathematical evidence to determine the sign of a sum

-3+75

b) What is the sum? Write an addition equation.

Categories--Decide whether the following expressions will have a positive sum or a negative sum. You do not need to calculate the sum.

(Drag and drop using the blue arrows to move into the positive or negative boxes)

SUM--Find the sum without using a number line. Write an addition equation.

105+(-126)

CFS:

#1: Uses mathematical evidence to determine the sign of a sum

#2: Shows accurate calculations for sum

SPICY--Try if you have time

SUM, AGAIN--Find the sum without using a number line. Write an addition equation.

1.8+(-6.6)

CFS:

#1: Uses mathematical evidence to determine the sign of a sum

#2: Shows accurate calculations for sum

Sort!--Decide whether the following expressions will have a positive sum or a negative sum. You do not need to calculate the sum.

(Drag and drop using the blue arrows to move into the positive or negative boxes)

SUM--Find the sum without using a number line. Write an addition equation.

**You must SYW on formative**

-99+14

"-99+14=____"

CFS:

#1: Uses mathematical evidence to determine the sign of a sum

#2: Shows accurate calculations for sum

CHALLENGE--Today's lesson is short. Set a goal for yourself. How many IXL lessons do you want to master? (Smartscore over 80)

When class is over, tell me how many recommended/on grade level lessons you mastered.