9 tens =
100
19
80
90
4 ten + 2 ten + 1 ten = ____ tens
9
5
7
10
One ten =
1
20
11
Look at the tens in a box. Write the correct number in the blank spaces.
90,100
70,80
60,50
10,20
10 tens are
50
6 ten + 1 ten = ____ tens
3
6 ten + ______ ten = 70.
1 ten + 5 ten + ____ ten = 9 ten
4
7 ten + 1 ten = ____ tens.
6
8
2 tens =
15
12
