make ____ sticks.
4
20
40
70
+
80 + 10 = ___ tens
8
7
9
10
7 ten + 1 ten = ____ tens.
5
6
10 tens are
100
50
1
+10 = ____ tens
One ten =
11
9 ten + 1 ten = ____ tens
2
Look at the tens in a box. Write the correct number in the blank spaces.
90,100
70,80
60,50
10,20
9 tens =
19
80
90
Count the beads in each chain and write the number.
60