7th Math Unit 2 Day 5 - 11/6

On Your Own--Rewrite as addition and find the sum.

**Show your work just like we did in the bottom of notes**

–3 – 7

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

On Your Own--Rewrite as addition and find the sum.

**Show your work just like we did in the bottom of notes**

6-(-4)

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

Rewrite the subtraction expression as addition

-9-(-2)

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

Rewrite the subtraction expression as addition

–2 – ( –5)

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

Rewrite the subtraction expression as addition

11 - ( -8)

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

Rewrite the subtraction expression as addition

-10 - ( - 4)

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

More Negatives

-7-(-17)

a) Rewrite the subtraction expression into addition.

b) Represent on the number line and find the sum.

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

Equation Time--Rewrite into an addition equation (should have an equals sign) and find the sum.

4-9

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

You currently have $70 on your prize check. Most of your points are positive points, but you also have a couple of deductions. It turns out that your homeroom teacher accidentally gave you a $5 deduction for not having homework, but then deletes this deduction.

i. Write a subtraction number sentence to represent this situation.

You currently have $70 on your prize check. Most of your points are positive points, but you also have a couple of deductions. It turns out that your homeroom teacher accidentally gave you a $5 deduction for not having homework, but then deletes this deduction.

ii. Rewrite the subtraction sentence as an addition number sentence and find your final prize check total.

SPICY--Try if you have time.

An airplane flies at an altitude of 26,000 feet. A submarine dives to a depth of 700 feet below sea level (-700). What is the difference in their elevations? Write an equation.

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

SPICY--Try if you have time.

Rewrite as an addition equation and find the sum.

-7-(-1.5)

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

Rule of Subtraction--Rewrite the following subtraction expression into an addition equation and find the sum.

-14-(-2)

CFS:

#1: Accurately shows the rule of subtraction

#2: Accurately determines sign of the answer

How many skills were you able to master (80+ Smartscore) on IXL?