Multiply or Divide.
1. (–7)(–12) 2. 120 ÷ (–20)
Solve each proportion.
24 x
3. p 3 4.
12 4 32 8
5. Mila can join a health club and pay $135 for three
months. At this rate, how much would a membership
for 12 months cost?
Course 3, Lesson 1-1
, ANSWERS
1. 84
2. –6
3. 9
4. 6
5. $540
Course3, Lesson 1-1
, The Number System
• 8.NS.1
Know that numbers that are not rational are called irrational.
Understand informally that every number has a decimal expansion; for
rational numbers show that the decimal expansion repeats eventually,
and convert a decimal expansion which repeats eventually into a
rational number.
Course 3, Lesson 1-1 Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council
of Chief State School Officers. All rights reserved.
, The Number System
Mathematical Practices
1 Make sense of problems and persevere in solving them.
3 Construct viable arguments and critique the reasoning of others.
4 Model with mathematics.
6 Attend to precision.
7 Look for and make use of structure.
8 Look for and express regularity in repeated reasoning.
Course 3, Lesson 1-1 Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of
Chief State School Officers. All rights reserved.
1. (–7)(–12) 2. 120 ÷ (–20)
Solve each proportion.
24 x
3. p 3 4.
12 4 32 8
5. Mila can join a health club and pay $135 for three
months. At this rate, how much would a membership
for 12 months cost?
Course 3, Lesson 1-1
, ANSWERS
1. 84
2. –6
3. 9
4. 6
5. $540
Course3, Lesson 1-1
, The Number System
• 8.NS.1
Know that numbers that are not rational are called irrational.
Understand informally that every number has a decimal expansion; for
rational numbers show that the decimal expansion repeats eventually,
and convert a decimal expansion which repeats eventually into a
rational number.
Course 3, Lesson 1-1 Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council
of Chief State School Officers. All rights reserved.
, The Number System
Mathematical Practices
1 Make sense of problems and persevere in solving them.
3 Construct viable arguments and critique the reasoning of others.
4 Model with mathematics.
6 Attend to precision.
7 Look for and make use of structure.
8 Look for and express regularity in repeated reasoning.
Course 3, Lesson 1-1 Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of
Chief State School Officers. All rights reserved.
