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7th Math Unit 2 Day 10 - 11/13

Last updated over 1 year ago
17 questions
Objective and Summary:
SWBAT understand rules for multiplying postive/negative integers by connecting to addition
1


You have four cards that say "-5" on them. Write an addition equation to find the sum.

CFS:
#1: Accurately interprets positive and negative signs
#2: Accurately writes equation

1

Represent the same four cards that say "-5" as multiplication. Write a multiplication equation.

1

Integer Cards--Mr. Kovalik removes two cards when playing the integer card game. The cards he removes are two, -3 point cards.
If he gets rid of these penalties, how will this affect his score?

Write a multiplication equation to represent the change to your test score.

CFS:
#1: Accurately interprets positive and negative signs
#2: Accurately writes equation

1

Calculate--What is the value of -4(-9)?

CFS:
#1: Accurately interprets positive and negative signs

MEDIUM Problems
1

MULTIPLE--Mariah is trying to find as many ways as possible to get a final answer of -24.
Select all expressions that are equivalent to -24.

CFS:
#1: Accurately interprets positive and negative signs

1

Mix n Match--Match the multiplication expressions with their products.

(Drag the blue arrows on the left side up or down so that they match with the answer on the right side)

CFS:
#1: Accurately interprets positive and negative signs

Draggable itemCorresponding Item
-7\times(-8)
-56
-15\times2
56
8\times(-7)
-30
-2\times(-15)
30
1

3x4=

1

3x(-4)=

1

-4x3=

1

-2x(-2)=

1

8x(-2)=

1

-8x(-2)=

1

9x(-9)=

1

-9x9=

1

-9x(-9)=

1

SPICY--Try if you have time.

BE CREATIVE--Find multiple ways of getting a value of -18 through according to the criteria:

a) Use one positive and one negative number and multiplication.

b) Use only negative numbers and addition.

4



Derek wrote the following addition expression to represent the money he has spent on hats for Among Us:

-2+(-2)+(-2)+(-2)+(-2)+(-2)+(-2)+(-2)

Help him represent the total amount of money he has spent by writing an equivalent multiplication equation.

CFS:
#1: Accurately interprets positive and negative signs
#2: Accurately writes equation

Nice job! This is a shorter lesson, so please do the following:

1) Practice more integer multiplication on IXL: (Search Codes: NB8, K7U, DQT)

2) Practice challenge skills like Algebra 1 or do more diagnostic practice to push yourself ahead!