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Cogito

Kindergarten Math · Chapter 3 · Lesson 1

Practice Worksheet

Putting Two Groups Together

Adding is joining.

10 problems · about 9 minutes · K.OA.A.1, K.OA.A.2

NameDate

Figure — use these to answer the problems

Put in three, then two more. Count them all.

How many5

Counters5
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

4 problems

  1. From “One More, One Less”

    One less than 7?

    Answer

  2. From “Comparing Written Numbers”

    Which is bigger, 5 or 8?

    Answer

  3. From “More, Fewer, the Same”

    Which is more, 9 or 6?

    Answer

  4. From “Writing Numbers”

    How many? ⭐⭐⭐⭐⭐⭐⭐

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. 3 + 4 = ?

    Answer

  2. 2 + 3 = ?

    Answer

  3. 4 + 1 = ?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. 5 + 4 = ?

    Answer

  2. 6 + 0 = ?

    Answer

Stretch Yourself

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

1 problem

  1. The Birds

    Four birds. Three more land. How many now?

    Answer