Read and write．(读一读，写一写)

What's sixty plus twenty?It's ________．

Read and write．(读一读，写一写)

What's twenty plus thirty?It's ________．

Read and write．(读一读，写一写)

What's ten plus thirty?It's ________．

Read and write the words in the correct column．(读一读，写一写)

Listen and match．(听一听，连一连)

Listen and number．(听一听，排一排)

Listen and answer．(听一听，答一答)

1)Where is Mary now?

________

2)How many children are there in her class?

________

3)How many boys are there in her class?

________

4)How many girls are there in her class?

________

5)How many teachers are there in her school?

________

6)How many classes are there in her school?

________