Count Backward from 20 to 0 - Kindergarten Math Practice and Study

Understanding Backward Counting

Counting backward means saying numbers in reverse order, going down by 1 each time. It helps children build number sense and prepares them for understanding subtraction and "how many are left."

Examples of Counting Backward:

From 10: “10, 9, 8, 7...”
From 3: “3, 2, 1, 0”
From 18: “18, 17, 16, 15...”

Keep in Mind

Children should hear and say each number out loud while counting down. This supports memory and rhythm in number sequences.

Count Down from Any Number

Children should practice counting backward from any number between 0 and 20. Starting from different numbers builds flexibility and deeper number understanding.

Start-Anywhere Examples:

From 13: “13, 12, 11, 10”
From 7: “7, 6, 5, 4”
From 2: “2, 1, 0”

Helpful Strategy

Practice starting from random numbers so children learn to count down in different situations, not just from 10 or 20.

Use a Number Line to Visualize

A number line shows numbers in order and helps children understand that counting backward means moving left. This visual model makes sequences easier to follow.

Number Line Activities:

Point to each number going left: “12, 11, 10, 9...”
Jump along a floor number line from 20 to 0
Use your finger to track steps backward on a chart

Teaching Tip

Use hands-on tools like large paper number lines, toys, or stickers to make counting backward interactive and engaging.

Connect Numbers to Real-Life Actions

Counting backward is easier to understand when linked to real objects. Children see how the number of things becomes less as they count down.

Hands-On Examples:

Place 10 blocks in a row. Remove one each time you count: “10, 9, 8...”
Draw 5 smiley faces and erase one with each count
Snack time: eat one piece at a time while counting how many are left

Instructional Idea

Make sure children connect each number to something they can see, touch, or do. This builds a strong foundation for understanding quantity.

Build Early Subtraction Thinking

Counting backward helps children begin to understand subtraction. They learn that each number down means "taking away" one from the last.

Subtraction Starters:

Ask: “What comes before 6?” Answer: 5
Say: “You had 4 crackers. You ate one. How many left?”
Match counting down to subtraction facts like: “7 - 1 = 6”

Reinforcement Tip

Ask children to explain their thinking as they count down. This helps them link counting and subtracting in a meaningful way.

Make It Fun Through Movement

Using movement, rhythm, and play turns counting backward into an exciting activity. These methods help children remember and enjoy learning.

Movement Ideas:

Rocket countdown game: “10, 9, 8...” and jump at zero!
Hop backward with each number on the rug
Clap or stomp while counting from 5 to 0

Engagement Reminder

Using music, actions, or games helps children connect their body and brain during learning. This boosts focus and memory.