Chapter 2 Review

5 zebras, 3 walk away, how many zebras now?

There are 6 cats. 5 cats run away. 6 - 5 = ___.

There are 4 dogs. 1 dog runs away. 4 - 1 = ___.

Is the subtraction sentence true?

5 - 5 = 0

• yes

• no

Is the subtraction sentence true?

2 - 2 = 2

• yes

• no

Is the subtraction sentence true?

4 - 0 = 4

• yes

• no

There are 9 pencils. 5 pencils are red. The rest are yellow. How many pencils are yellow?

There are 6 frogs on a log. 1 frog is big. The others are small. How many frogs are small? 6 - 1 = ___.

Look at the picture. How many fewer bats are there than balls? Choose the number.

• 5

• 3

• 2