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Cogito

Kindergarten Math · Chapter 3 · Lesson 3

Practice Worksheet

Adding in Any Order

Two plus five is the same as five plus two.

10 problems · about 9 minutes · K.OA.A.2

NameDate

Figure — use these to answer the problems

Two groups. Swap their sizes. The total stays the same.
Red group
Blue group

How many in all7

Red group2
Blue group5
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

4 problems

  1. From “Counting On”

    6 + 2 = ?

    Answer

  2. From “Putting Two Groups Together”

    3 + 4 = ?

    Answer

  3. From “One More, One Less”

    One less than 7?

    Answer

  4. From “Comparing Written Numbers”

    Which is bigger, 5 or 8?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. 2 + 6 = ?

    Answer

  2. 3 + 5 = ?

    Answer

  3. 5 + 3 = ?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. 1 + 8 = ?

    Answer

  2. 4 + 2 is the same as 2 + ?

    Answer

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

1 problem

  1. The Stickers

    Three stickers and six stickers. How many?

    Answer