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Cogito

Kindergarten Math · Chapter 7 · Lesson 2

Practice Worksheet

Counting by Tens

Ten, twenty, thirty, jumping along.

10 problems · about 8 minutes · K.CC.A.1

NameDate

Figure — use these to answer the problems

Set the step to ten. Look at the marked column.

Numbers 1 to 100, ten in each row. 10 is chosen.

Chosen number10

Count in steps of10

Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

4 problems

From “Counting by Ones to a Hundred”
What comes after 49?
Answer
From “Comparing Teen Numbers”
Which is bigger, 14 or 18?
Answer
From “Building Teen Numbers”
10 + 5 = ?
Answer
From “Ten and Some More”
18 is 10 and how many?
Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

Five bundles of ten. How many?
Answer
What comes after 30 when counting by tens?
Answer
What comes after 70 when counting by tens?
Answer

Build It Up

The same ideas with more to keep track of.

2 problems

How many tens make a hundred?
Answer
Six bundles of ten. How many?
Answer

Stretch Yourself

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

1 problem

The Bundles
Four bundles of ten straws. How many straws?
Answer