Activities about decimal

Mother’s Day by the numbers

Mother’s Day is right around the corner, and that means big business for the greeting card, flower, and restaurant industries. In this activity, students calculate the average Mother's...

Number Sense Holidays Grades 5–6

Black Friday

Black Friday is the biggest shopping day of the year! In this activity, students get a sneak peek at early Black Friday deals to calculate savings (decimals &...

Holidays and Annual Events Ratio and Proportion Grades 5–7

Drill Bit Fractions

In this updated activity, students explore how drill bits are measured using fractions of an inch. They will use equivalent fractions to compare drill bit sizes, fill in...

Number Sense Math and Food Grades 4–6

What a range

📗Temperature Math with Negative Numbers! 🌡️ Around the world, temperatures can be wildly different depending on the location and time of year. In this activity, students explore average...

Math and Science Data and probability Grades 4–6

Inflation and the cost of gasoline

In 1980, one gallon of gasoline costs $1.22. Today's prices are a lot higher. Is that because the price has gone up or because in 1980 you could...

Algebra Number Sense Grades 5–7

Hexadecimal coloring

Probably most of us have heard of and even used hexadecimal color codes. Don't you wonder why their number descriptions really make sense? In this activity we first...

Number Sense Geometry Grades 5–HS

Proposed southern border wall

You have probably heard about the proposed border wall that may go up along the U.S./Mexico border. How much wall needs to be built? How much will that...

Number Sense Math and Social Studies Grades 5–7

Really old

Tom Lehrer is a singer, songwriter, satirist, pianist and mathematician who has written some wonderful songs. In 1959 he wrote a song called “New Math”. At that time,...

Number Sense Math and Social Studies Grades 6–HS