7th Math 2.15 A

Last updated over 2 years ago
9 questions

Math - [Lesson 2.15]

Teacher: Mr. Kovalik (408) 314-1092

Objective and Summary:
SWBAT recognize that rules for multiplying and dividing integers apply to rational numbers
1

AA--Air Alexanders™ are going for $30.20 per pair. Represent the change to Oscar's money with an equation if he buys 6 pairs.

CFS:
#1: Accurately identifies sign of key words
#2: Accurately writes a multiplication or division equation

1

Belpres--Mr. Kovalik wants to buy some snacks as rewards for his homeroom because they did great on the last science test. He decides to buy three bags of chocolates that cost $4.35 each.
Represent the change to his money with an equation.

CFS:
#1: Accurately identifies sign of key words
#2: Accurately writes a multiplication or division equation

1

Bowling--A crew of six Prize 7th graders go to the mall over the weekend. In total, they spent $85.14 at Round One. Each student spent the same amount of money that day.
Represent the change to each person's money with an equation.

CFS:
#1: Accurately identifies sign of key words
#2: Accurately writes a multiplication or division equation

MEDIUM PROBLEMS
1

Skill and Drill--Evaluate the following expressions.
(Write your answer as a single number.)

10.5\times(-4)

CFS:
#1: Accurately evaluates using sign rules

1

Skill and Drill--Evaluate the following expressions.
(Write your answer as a single number.)

-\frac{3}{4}\times(-\frac{1}{2})

CFS:
#1: Accurately evaluates using sign rules

1

Roomies--Four roommates want to buy a new couch for their living room. They decide to split the cost evenly four ways. If the total cost of the couch is $493.60, how much does each person pay individually? Write an equation.

CFS:
#1: Accurately identifies sign of key words
#2: Accurately writes a multiplication or division equation

1

BE CREATIVE--Create your own multiplication or division word problem that uses rational numbers (fractions or decimals).

a) Explain the situation in your word problem (use the notes for examples if you need them)

b) Write your own equation that can represent what is happening in your word problem.

1

SPICY--Try if you have time.

PEMDAS Challenge--Use your knowledge of order of operatiosn to evaluate the expression below.

20\div4-(10-4\div2)\times3

CFS:
#1: Accurately evaluates using sign rules

4

Bills--In one year, Mr. Kovalik spends $1,320.84 on cable and internet. If he spends the same amount each month, what is the monthly change in his savings from paying these bills?
Write an equation to represent the change.

CFS:
#1: Accurately identifies sign of key words
#2: Accurately writes a multiplication or division equation

Nice job!

1) Work on the new starred recommended skills on IXL (multiplying/dividing fractions and decimals)

2) Work ahead on challenge skills in your diagnostic or Algebra 1