4 ten + 2 ten + 1 ten = ____ tens
9
5
7
10
Count the beads in each chain and write the number.
90
80
60
40
2 tens =
20
15
12
9 tens =
100
19
Look at the tens in a box. Write the correct number in the blank spaces.
90,100
70,80
60,50
10,20
6 ten + 1 ten = ____ tens
3
+10 = ____ tens
6
4 tens makes
50
70
1 ten + 5 ten + ____ ten = 9 ten
4
1
+
80 + 10 = ___ tens
8