enVision Mathematics Grade 4, Topic 11: Represent and Interpret Decimals
In this unit, your child connects fractions to decimals. They rename tenths as hundredths, write fractions like 62/100 as 0.62, place decimals on a number line, and compare decimals like 0.09 and 0.1. Money helps make sense of it all. It builds on the fraction units before it and leads into measurement conversions.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Topic 11?
- Renaming tenths as hundredths, like 4/10 = 40/100, to add fractions such as 4/10 + 7/100 = 47/100. Learn more: Adding tenths and hundredths together
- Writing tenths and hundredths as decimals, and locating decimals like 0.3 and 0.75 on a number line. Learn more: Writing fractions as decimals, like 0.62
- Comparing decimals to the hundredths place with >, =, or <, using place value and models like grids and number lines. Learn more: Comparing decimals like 0.09 and 0.1
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
How many hundredths make the same amount as 1/10?
- 1
- 10
- 100
How you can help
- Count coins together. Put out 2 dimes and 7 pennies and ask your child to write the amount as 27/100 of a dollar and as $0.27.
- Draw a 10-by-10 grid and shade 4 full columns. Ask your child to name the shaded part as 4 tenths and as 40 hundredths, and explain why both fit.
- Compare prices under a dollar at the store, like $0.89 and $0.95. Ask which costs more, then whether 1 dime or 9 pennies is more money.
Where kids can get stuck
- Renaming 3/10 as 3/100, changing the denominator but not multiplying the numerator by 10.
- Reading 0.62 as "point sixty-two" without knowing it means 62 hundredths.
- Thinking 0.25 is greater than 0.3 because 25 is greater than 3.
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
- decimal
- A number written with a decimal point, like 0.62, to show parts of a whole.
- decimal point
- The dot that separates the whole number from the tenths and hundredths.
- tenth
- One of 10 equal parts of a whole, written 1/10 or 0.1.
- hundredth
- One of 100 equal parts of a whole, written 1/100 or 0.01.
- tenths place
- The first place to the right of the decimal point.
- hundredths place
- The second place to the right of the decimal point.
- hundredths grid
- A square split into 100 equal parts, used to show hundredths.
Want to help your child master tenths and hundredths?
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 enVision Mathematics Grade 4 Topic 11 cover?
enVision Mathematics Grade 4 Topic 11 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.