# Counting up to 20

## Overview

Counting is an important skill that we use everyday in life. When we buy items from a store, we count our money to give to the cashier. When we eat delicious cookies, we count how many cookies we choose to eat.

Can you think of things that you count?

Using our fingers is a great way counting up to 10. We have ten fingers so it’s easy to count when we work with numbers from 0 to ten. When working with numbers greater than 10, we can use objects to help us count.

Here you will learn how to count to 20!

First let’s review all of our numbers from 0 to 20.

Now let’s add in some objects to match each number from 0 to 20.

Counting is helpful when we start working with addition and subtraction problems.

Let’s take a look at the following example.

### Practice Question 1

Lisa has 7 toy cars and Julia has 8 toy cars. How many cars in total does Lisa and Julia have together?

We can use our counting skills to help us solve this problem. We can use our fingers or we can use objects to help us count.

Let’s try using our fingers.
– We are starting with 7 toy cars, so you can count up 8 fingers to get to the answer 15.

We can also use objects to help us count. Let’s use some marbles!
– We will use 7 marbles to represent the 7 toy cars AND 8 marbles to represent 8 toy cars. Then we can count all the marbles up to get 15.

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TIP: Using objects is very helpful when we learn how to count up to 20 and solving different problems. Try to find 20 marbles, pencils, pens, or any objects that you can use to help you count! The more you use these objects, you will be able to visualize the problems faster.
Dino

### Practice Question 2

Matthew has 4 pencils. Rob has 9 pencils. How many pencils does Matthew and Rob have together?

Solve this problem using your fingers or objects to help you count. Below we will solve this problem using marbles to help us count to find the answer.

### Practice Question 3

Gregory has 7 stamps in his collection. Lisa has 8 stamps in her collection. Jose has 4 stamps in his collection. How many stamps in total do Gregory, Lisa, and Jose have together?

### Practice Question 4

Melanie counts 18 marbles on the table. Four of the marbles fall off the table. How many marbles remain on the table?

Hint* This problem requires us to use our subtraction skills. We can use objects to help us solve this problem.

### Practice Question 5

Stefan has 6 fingers up. Mia has 5 fingers up. Timothy has 3 fingers up. How many fingers together does Stefan, Mia, and Timothy have up?

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TIP: Are you having trouble finding objects to use to help you solve these problems? Even if you do not have marbles or other objects in your house, you can draw objects on the paper to help you count! If we take a look at the problem “15 + 4” and you want to use objects to help you solve this problem, go ahead and draw 15 stars and then 4 stars. Now add all the stars up and you should have counted 19 stars in total, which is the answer to the problem.
Dino

Ready to test what you have learned? Take the quiz below!

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