Negative numbers: addition and subtraction

Intro to adding negative numbers

3 Topics
|
3 Quizzes
Intro to subtracting negative numbers

2 Topics
|
2 Quizzes
1. Adding & subtracting negative numbers
  1. Understand subtraction as adding the opposite
2. Subtracting a negative = adding a positive
  1. Subtracting negative numbers
Adding & subtracting with negatives on the number line

3 Topics
|
3 Quizzes
Adding & subtracting integers

3 Topics
|
2 Quizzes
Adding & subtracting negative fractions

2 Topics
|
1 Quiz
1. Adding fractions with different signs
2. Adding & subtracting fractions
  1. Adding & subtracting negative fractions
Addition & subtraction word problems with negatives

3 Topics
|
2 Quizzes
- Negative number addition and subtraction: word problems
Absolute value

2 Topics
|
1 Quiz
1. Absolute value as distance between numbers
2. Interpreting absolute value as distance
- Absolute value to find distance
Properties of addition & subtraction

1 Topic
|
2 Quizzes
1. Equivalent expressions with negative numbers
  1. Equivalent expressions with negative numbers
- Equivalent expressions with negative numbers and variables
Adding & subtracting negative numbers: variables

2 Topics
|
3 Quizzes
1. Substitution with negative numbers
  1. Substitution with negative numbers
2. Ordering expressions
  1. Ordering negative number expressions
  2. One-step equations with negatives (add & subtract)
Negative numbers: multiplication and division

Multiply & divide negative numbers

4 Topics
|
4 Quizzes
Multiplication & division word problems with negatives

1 Topic
|
1 Quiz
1. Multiplication & division word problems with negatives
- Multiplying & dividing negative numbers word problem
Understanding multiplying and dividing fractions

2 Topics
|
2 Quizzes
1. Negative signs in fractions
2. Expressions with rational numbers
- Negative signs in fractions
- Negative signs in fractions (with variables)
Multiply & divide negative fractions

3 Topics
|
2 Quizzes
- Multiplying positive and negative fractions
- Dividing positive and negative fractions
Order of operations

3 Topics
|
1 Quiz
- Order of operations with negative numbers
Properties of multiplication & division

1 Topic
|
1 Quiz
1. Equivalent expressions with negative numbers (multiplication and division)
- Equivalent expressions with negative numbers (multiplication and division)
Fractions, decimals, & percentages

Converting fractions to decimals

4 Topics
|
3 Quizzes
Adding & subtracting rational numbers

3 Topics
|
2 Quizzes
- Order rational numbers
- Adding & subtracting rational numbers
Percent word problems

4 Topics
|
4 Quizzes
Rational number word problems

7 Topics
|
1 Quiz
- Rational number word problems
Rates & proportional relationships

Rate problems with fractions

1 Topic
1. Rates with fractions
Constant of proportionality

7 Topics
|
4 Quizzes
Compare and interpret constants of proportionality

3 Topics
|
3 Quizzes
Identifying proportional relationships

7 Topics
|
2 Quizzes
- Identify proportional relationships
- Proportional relationships
Graphs of proportional relationships

3 Topics
|
2 Quizzes
- Identify proportional relationships from graphs
- Interpreting graphs of proportional relationships
Writing & solving proportions

4 Topics
|
3 Quizzes
Equations of proportional relationships

3 Topics
|
2 Quizzes
- Writing proportional equations from tables
- Writing proportional equations
Expressions, equations, & inequalities

Combining like terms

4 Topics
|
2 Quizzes
- Combining like terms with negative coefficients
- Combining like terms with negative coefficients & distribution
The distributive property & equivalent expressions

3 Topics
|
2 Quizzes
- Distributive property with variables (negative numbers)
- Equivalent expressions: negative numbers & distribution
Interpreting linear expressions

3 Topics
|
2 Quizzes
- Interpreting linear expressions
- Writing expressions word problems
Two-step equations intro

4 Topics
|
1 Quiz
- Two-step equations
Two-step equations with decimals and fractions

3 Topics
|
2 Quizzes
- Two-step equations with decimals and fractions
- Find the mistake: two-step equations
Two-step equation word problems

5 Topics
|
2 Quizzes
- Interpret two-step equation word problems
- Two-step equations word problems
One-step inequalities

5 Topics
|
4 Quizzes
Two-step inequalities

3 Topics
|
2 Quizzes
- Two-step inequalities
- Two-step inequality word problems
Geometry

Area and circumference of circles

6 Topics
|
4 Quizzes
Area and circumference challenge problems

3 Topics
|
3 Quizzes
Vertical, complementary, and supplementary angles

3 Topics
|
6 Quizzes
Missing angle problems

5 Topics
|
3 Quizzes
Constructing triangles

3 Topics
|
1 Quiz
- Triangle side length rules
Slicing geometric shapes

1 Topic
|
1 Quiz
1. Slicing a rectangular pyramid
- Cross sections of 3D objects (basic)
Scale copies

7 Topics
|
6 Quizzes
Scale drawings

7 Topics
|
3 Quizzes
Volume and surface area word problems

3 Topics
|
1 Quiz
- Volume and surface area word problems
Statistics and probability

Basic probability

5 Topics
|
3 Quizzes
Probability models

3 Topics
|
2 Quizzes
- Making predictions with probability
- Probability models
Compound events and sample spaces

5 Topics
|
3 Quizzes
Comparing and sampling populations

2 Topics
|
3 Quizzes
1. Reasonable samples
2. Comparing distributions with dot plots (example problem)

Quiz 37 of 112

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Percent problems

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Math 7th grade

Percent problems

Quiz Summary

Information

Results

Results

Categories

1. Question

A swimming pool had 2.5 million liters of water in it. Some water evaporated, and then the pool only had 2 million liters of water in it.

What percent of the water evaporated?

\%

2. Question

Kong took 15\% fewer seconds than Nolan took to complete his multiplication timed test. Kong took 85 seconds.

How many seconds did Nolan take?

seconds

3. Question

Tapiwa raked 5\% more leaves than Adam raked. Tapiwa raked 357 liters of leaves.

How many liters of leaves did Adam rake?

liters

4. Question

Oliver read for 450 minutes this month. His goal is to read for 10\% more minutes next month.

If Oliver meets his goal, how many minutes will he read in all during the two months?

minutes

5. Question

Finley’s pumpkin had a mass of 6.5 kilograms \left(kg\right) before he carved it. After carving it, the pumpkin had a mass of 3.9\ kg.

What was the percent decrease in the mass of the pumpkin?

\%

6. Question

Savanna had 40 iris blooms last year. This year, she had 15\% more iris blooms.

How many more iris blooms did Savanna have this year?

blooms

7. Question

Haruka hiked several kilometers in the morning. She hiked only 6 kilometers in the afternoon, which was 25\% less than she had hiked in the morning.

How many kilometers did Haruka hike in all?

kilometers

8. Question

A brand of cereal had 1.2 milligrams \left(mg\right) of iron per serving. Then they changed their recipe so they had 1.8\ mg of iron per serving.

What was the percent increase in iron?

\%

9. Question

The family size bottle of sunscreen holds 12 fluid ounces \left(fl\ oz\right) of sunscreen. The regular bottle holds 75\% less.

How many fewer fluid ounces does the regular bottle of sunscreen hold?

fl\ oz

10. Question

A spider ate 25\% more bugs this month than last month. The spider ate 8 bugs last month.

How many bugs did the spider eat this month?

bugs

11. Question

Ann increased the quantities of all the ingredients in a recipe by 60\%. She used 80 grams \left(g\right) of cheese.

How much cheese did the recipe require?

g

12. Question

There are 20\% more goblins than wizards in magic club. There are 120 goblins in magic club.

How many wizards are in the magic club?

wizards

13. Question

In a video game, Val scored 30\% fewer points than Peeta. Peeta scored 1060 points.

How many points did Val score?

points

14. Question

Cody was 165\ cm tall on the first day of school this year, which was 10\% taller than he was on the first day of school last year.

How tall was Cody on the first day of school last year?

cm

A swimming pool had $2.5$ million liters of water in it. Some water evaporated, and then the pool only had $2$ million liters of water in it.

$\%$

Kong took $15\%$ fewer seconds than Nolan took to complete his multiplication timed test. Kong took $85$ seconds.

Tapiwa raked $5\%$ more leaves than Adam raked. Tapiwa raked $357$ liters of leaves.

Oliver read for $450$ minutes this month. His goal is to read for $10\%$ more minutes next month.

Finley’s pumpkin had a mass of $6.5$ kilograms $\left(kg\right)$ before he carved it. After carving it, the pumpkin had a mass of $3.9\ kg$ .

$\%$

Savanna had $40$ iris blooms last year. This year, she had $15\%$ more iris blooms.

Haruka hiked several kilometers in the morning. She hiked only $6$ kilometers in the afternoon, which was $25\%$ less than she had hiked in the morning.

A brand of cereal had $1.2$ milligrams $\left(mg\right)$ of iron per serving. Then they changed their recipe so they had $1.8\ mg$ of iron per serving.

$\%$

The family size bottle of sunscreen holds $12$ fluid ounces $\left(fl\ oz\right)$ of sunscreen. The regular bottle holds $75\%$ less.

$fl\ oz$

A spider ate $25\%$ more bugs this month than last month. The spider ate $8$ bugs last month.

Ann increased the quantities of all the ingredients in a recipe by $60\%$ . She used $80$ grams $\left(g\right)$ of cheese.

$g$

There are $20\%$ more goblins than wizards in magic club. There are $120$ goblins in magic club.

In a video game, Val scored $30\%$ fewer points than Peeta. Peeta scored $1060$ points.

Cody was $165\ cm$ tall on the first day of school this year, which was $10\%$ taller than he was on the first day of school last year.

$cm$