Choose “Save as PDF” in the print dialog to keep a copy.

Cogito

Pre-K Math · Chapter 2 · Lesson 4

Practice Worksheet

Zero Means None

A number for nothing at all.

10 problems · about 6 minutes · PK.CC.2

NameDate

Figure — use these to answer the problems

Take them all away. What number is left?

None yet. Add some!

How many in all0

Apples0

Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

5 problems

From “One More”
One more than 7?
Answer
From “Nine and Ten”
How many fingers on two hands?
Answer
From “Six, Seven, Eight”
How many? 🐚🐚🐚🐚🐚🐚
Answer
From “Which Has More”
Which is more, 5 or 3?
Answer
From “How Many Altogether”
You counted to four. How many are there?
Answer

Warm Up

Straightforward practice. Get the method working first.

2 problems

Nothing on the table. How many?
Answer
An empty plate. How many cakes?
Answer

Build It Up

The same ideas with more to keep track of.

1 problem

One bird flies away from one bird. How many left?
Answer

Stretch Yourself

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

2 problems

How many elephants in your pocket?
Answer
The Empty Box
The box has nothing in it. How many?
Answer