Listen and number．(听课本第42页的录音，排一排)
Look and write．(看一看，写单词)
Write and practise．(写出几个算式，然后和爸爸、妈妈或同伴做问答练习)
What's…plus…?
1)________＋________＝________
2)________＋________＝________
3)________＋________＝________
4)________＋________＝________
5)________＋________＝________
6)________＋________＝________
7)________＋________＝________
8)________＋________＝________
Read and choose．(读一读，选一选)
1)What's forty plus thirty?
It's ________．
2)What's twenty plus sixty?
3)What's ten plus fifty?
4)What's fifty plus forty?
Read and compare．(读一读，比一比)
Read and write the words in the correct column．(读一读，写一写)
Read and answer．(读一读，答一答)
How many friends do you have?
________
