Reveal Math Kindergarten, Unit 6: Count to 100

In this unit, your child counts to 100 by ones and by tens and learns to start counting from any number, not just 1. Saying numbers in order this far takes practice, especially at each new ten. It builds on the teen numbers from the last unit and gives your child a counting tool for addition, which comes next.

By Math teacher, parent, and founder of Bobby’s Math Club

What is my child learning in Unit 6?

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 comes next? 10, 20, 30, 40, __

  • 60
  • 50
  • 41

How you can help

  1. Take turns counting by tens on a walk or ride: you say 10, your child says 20, and so on, all the way to 100.
  2. Say a number like 27 and ask your child to keep counting from there. If they freeze, count the next few together and let them take over.
  3. Count 100 steps on a walk together, and pause at each new ten so your child can be the one to say it.

Where kids can get stuck

  • Inventing a word like "ten-ty" after ninety, not yet knowing that one hundred comes next.
  • Going back to 1 to find the next number after hearing a starting number like 23.
  • Freezing when asked to start from a teen number like 13, even though starting at 4 feels easy.

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

count on
To start counting from a number other than 1.
count by tens
Saying 10, 20, 30, and on, adding one group of ten each time.
start
The number where counting begins.
ones
Single things, counted one at a time.
tens
Groups of ten, counted 10, 20, 30, and on.
hundred
The number 100, which is ten tens.

Ready to build your child’s confidence with counting to 100?

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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Robert “Bobby” Barnett

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 Reveal Math Kindergarten Unit 6 cover?

Reveal Math Kindergarten Unit 6 covers these math standards. Each one links to what it means, sample questions, and teaching strategies.

  • K.CC.A.1: Count to 100 by ones and by tens.
  • K.CC.A.2: Count forward from a given number.

All kindergarten math standards

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.