Place Value
8
4+3=
7
8-4=
4
10+10=
35-20=
15
How many ones are in the number 39?
9
6+2=
8
6-3=
3
33+21=
54
45-35=
10
How many tens are in the number 336?
3
9+4=
13
9-4=
5
67+22=
89
88-75=
13
How many hundreds are in the number 739?
7
6+5=
11
3-1=
2
81+18
99
88-44=
44
How many hundreds are in the number 1,479?
4
8+7=
15
9-9=
0
90+15=
105
95-15=
80