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Fluently add with 2

Students recall sums involving +2 within 5 instantly (e.g., 2 + 2 = 4, 3 + 2 = 5), treating +2 as 'two more.'

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Fluently add with 2

Kindergarten · Fluency Within 5 · question 1 of 3

0 of 12

12 rungs. A star at the top.

1 + 2 =

How it is taught

0:00 of 1:37

Plus 2 means two more.

Two more is two jumps ahead.

Read it: Adding by counting on

You have 3 crackers. Your brother gives you 2 more. You could count them all again from 1 — but you already know the plate is 3.

  1. Say the number you already know: 3.
  2. Count on, 1 number for each new cracker: 4, 5.
  3. The last number you say is the total: 3 + 2 = 5.

Counting all from 1 works, but it is slow, and it gets slower as the numbers grow.

Counting on starts from a number you already trust, so there is less to count and less to lose track of.

Start from the bigger number. 2 + 3 is quicker as 3, 4, 5 than as 2, 3, 4, 5.

To add, start at the bigger number and count on the other one.

Saying the starting number as the first count: 3, 4 for 3 + 2, and answering 4.

The starting number is what you already have. The counting begins with the first NEW cracker: 4.

3 + 2

Let's learn to add two! Adding two just means 'two more.'

Here are three blue dots.

Now we add two more. Two green dots join the group.

Let's count them all: one, two, three, four, five!

+2 meanstwo more!3 + 2 = ?+123453+2=?5ANSWER53 + 2 = 5
Kindergarten · Adding 2 means 'two more'

We can write this as three plus two equals what?

Three plus two equals five!

Plus two means two more. Three plus two is five. Great job!

What you see

While they climb, your page writes one true line to ask about tonight, and a short note each Sunday.

MayaGrade 3 · Mathematics
Did you know?

A chessboard has 64 squares — share them out between the 8 rows and each row holds exactly 8.

Today’s goal
1 star — one skill mastered, every rung of its ladder climbed
Climbing now
Divide within 100

An example student.

MayaGrade 3 · Mathematics

Maya earned 2 stars this week — Interpret multiplication as equal groups, which took 6 answers over 3 days before its star landed 3 days ago and Multiply by 6, 7, 8 and 9. Next up: Divide within 100.

An example week.

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