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Math · Grade 1 Math

Chapter 2: Adding Within 10

Counting On

Start at one number instead of going back to one.

Lesson
2
Time
About 11 minutes
0 of 6 done

Step 1: Let's Learn

Read it, or press Listen and follow the words.

You do not have to count from one every time.

Hold the first number

For 6 + 3, hold 6 in your head. Then count on: 7, 8, 9.

Counting on is faster and you make fewer mistakes.

Why you may skip the first group

You already know how many are in it. Counting them again tells you nothing you did not have a moment ago.

The mistake everybody makes

Do not say the starting number as your first count. For 6 + 2, six is where you stand. The counting is seven, eight.

Step 2: Try It Yourself

Hop along and watch where you land.

Put the marker on the first number, then hop.

Step 3: Watch an Example

One step at a time.

Watch Ben Count On

Ben works out 6 + 3.

  1. Step 1

    He says the bigger number first: 6.

Step 4: Your Turn

Practice makes it stick.

At the Pond

Problem 1 of 1

There are 7 ducks. Then 2 more arrive. How many ducks now?

Count On Practice

Hold the first number, then count on.

1 of 3

5 + 3 = ?

2 of 3

7 + 2 = ?

3 of 3

4 + 3 = ?

Step 5: Quick Check

Show what you know.

Question 1 of 2

8 + 2 = ?

Question 2 of 2

6 + 4 = ?

What You Learned

  • Start at one number and count on.
  • Do not go back to one.
  • Use your fingers to keep track.