7th Math 2.10 Version B 22-23

Last updated over 2 years ago
9 questions

Math - [Lesson 2.10]

Teacher: Mr. Kovalik (408) 314-1092


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

Grading Error--Mr. Kovalik made a mistake when grading your last test. He accidentally marked down two 3 point penalties.
If he gets rid of these penalties, how will this affect your 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
-15\times2
-56
8\times(-7)
56
-7\times(-8)
-30
-2\times(-15)
30
1

Skill and Drill--Calculate the following. Type in the SYW section

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!