Everyday Mathematics Grade 4, Unit 6: Division and Angles
In this unit, your child divides numbers of up to four digits by a one-digit number, including problems with remainders, and learns to measure and draw angles in degrees with a protractor. It follows adding and subtracting fractions and mixed numbers, and it leads into multiplying a fraction by a whole number.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Unit 6?
- Dividing numbers of up to four digits by one-digit divisors, finding the quotient and any remainder, and checking by multiplying back. Learn more: Dividing with remainders, like 87 ÷ 5
- Understanding an angle as a turn measured in degrees, with a quarter turn at 90 degrees and a full turn at 360. Learn more: What angles are and how degrees measure them
- Measuring angles to the nearest degree with a protractor, and drawing angles of a given size, such as 45 or 120 degrees. Learn more: Measuring and drawing angles with a protractor
Sample questions to try together
These are real questions from our practice. Tap the speaker to hear one read aloud, or the light bulb for a hint, and talk about the answer together.
Question 1 of 3
What is 87 ÷ 5?
- 17
- 17 R 2
- 17.2
How you can help
- Share things out evenly: split 75 crackers among 4 people and ask your child for the quotient, the remainder, and what to do with the extras.
- Turn your bodies together: a quarter turn is 90 degrees, a half turn is 180, and a full turn is 360. Ask how many degrees three quarter turns make.
- Spot angles around the house, such as a door partly open, an open book, or the hands of a clock, and guess whether each is more or less than 90 degrees.
Where kids can get stuck
- Leaving a remainder bigger than the divisor, such as 7 left over when dividing by 5.
- Reading the wrong row of numbers on a protractor, so a 50-degree angle gets recorded as 130 degrees.
- Thinking an angle with longer rays is bigger, even when two angles open by the same amount.
Practice makes perfect
Bobby's Math Club has practice problems that adapt to your child’s level, each with a detailed explanation and an easy-to-follow video, so your child can build confidence in these skills one step at a time.
Words your child will hear
- dividend
- The number being divided, like 87 in 87 ÷ 5.
- divisor
- The number you divide by, like 5 in 87 ÷ 5.
- quotient
- The answer to a division problem.
- remainder
- The amount left over when a number cannot be divided evenly.
- angle
- The figure formed where two rays meet at the same endpoint.
- vertex
- The point where the two rays of an angle meet.
- degree
- The unit for measuring angles; a full turn is 360 degrees.
- protractor
- A tool for measuring and drawing angles in degrees.
Want to help your child master division and angles?
In Bobby's Math Club, your child practices these skills at just the right level, with a hint when they need one, a clear explanation after every question, and kid-friendly videos. Unlimited practice is free.
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Written by Robert “Bobby” Barnett
Bobby is an award-winning math teacher, the author of Meet Every Learner’s Needs, and the father of two elementary-school math learners. He uses Bobby’s Math Club with his own kids a few times every week. Learn more or contact Bobby.
Which math standards does Everyday Mathematics Grade 4 Unit 6 cover?
Everyday Mathematics Grade 4 Unit 6 covers these math standards. Each one links to what it means, sample questions, and teaching strategies.
For teachers: Unit names and order vary between editions and districts, so your school’s own materials have the exact sequence. Learn how Bobby's Math Club can help your students grow.