Twenty plus twenty-four are _______. ( )
| A．forty-four | B．forty | C．fourteen |
There are sixty children in our class. Thirty boys and _____ girls. ( )
| A．fifteen | B．thirty | C．twenty |
Look and match.
1.
a. six + ten = sixteen
2.
b. ten + ten = twenty
3.
c. five + nine = fourteen
1.
a. six + ten = sixteen2.
b. ten + ten = twenty3.
c. five + nine = fourteen
（_____）Read and write. What's nine plus twelve?________________________.