7th Math Unit 2 Day 2 - 10/31

Last updated over 1 year ago
9 questions
1

Lost Wages--Joseph washes dishes in a restaurant. He accidentally knocks over some plates which he has to spend $5 to replace. However, he gets paid $10 for that hour of work.

a) Represent the changes to his money on the number line.

b) Write an addition equation.

CFS:
#1: Accurately models and labels on the number line
#2: Writes an accurate addition equation

1

c) Which number has the greatest absolute value?

1

Savings--Saul is working part-time this weekend to save up money for video games. He earns $9 mowing a lawn, buys some ice cream for $3, then buys a Mocha Frappuccino for $5. How much money did he save?

a) Represent the changes to his money on the number line.

b) Write an addition equation.

CFS:
#1: Accurately models and labels on the number line
#2: Writes an accurate addition equation

1

c) Which number has the greatest absolute value?

MEDIUM Problems
1

Visuals--Create a number line model to represent each of the expressions below, then write an addition equation in the answer box.

a) -4+(-4)

CFS:
#1: Accurately models and labels on the number line
#2: Writes an accurate addition equation

1

Visuals--Create a number line model to represent each of the expressions below, then write an addition equation in the answer box.

b) -3+(-7)+10

CFS:
#1: Accurately models and labels on the number line
#2: Writes an accurate addition equation

1

SPICY--Try if you have time.

a) Be Creative--Create your own word problem or scenario that can be described by the expression
5+(-5)+7+(-2). Make sure to properly represent the positive and negative numbers.

If you need an idea for your word problem, make it about gaining or losing money.

4

Analyze--Student McStudentson made the number line to model the expression -5+(-2)+3
He says, "According to my number line, the sum of these three numbers is 1."

a) Is he correct or incorrect? Explain how you know using mathematical evidence. If he is incorrect, find the actual sum of the three numbers.

You may also draw on the number line to show how you would model instead.

"Student McStudentson is (correct / incorrect) because..."

CFS:
#1: Accurately models and labels on the number line
#2: Writes an accurate addition equation

2

b) Which of the numbers has the greatest absolute value?

Good work! You can push yourself by...

1) Working on adding integers on the number line on IXL (Search codes: A63, ERH, and QFU)

2) Working on recommended diagnostic skills