Worksheet: Counting by Threes up to 100

In this worksheet, we will practice counting in multiples of 3 within 100.

Q1:

Hannah knows she does not need to say every number when counting the blocks. She is counting in 3s.

How many blocks are there?

Q2:

Sophia is counting in 3s.

What is 3 less than 21?

What is 3 more than 21?

Q3:

The pink monsters have 9 eyes altogether. Count in 3s to find how many eyes all of the monsters have in total.

Q4:

Each monster has 3 eyes. Ethan is counting in threes to find how many eyes there are.

How many eyes are there in total?

Q5:

Find the total number of candy by counting in 3s.

Find the total number of candy if we add 3 more pieces.

Q6:

Find the missing number on the number line by counting in 3s.

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