Place Value
How many ones are in the number 20?
0 ones
10 + 12 =
22
23 + 19 =
42
55 - 23 =
32
12+9=
21
What number is in the ones place in the number 45?
5 ones
23 + 23 =
46
24 + 36
60
57 - 43 =
14
27-16=
11
How many tens are there in the number 67?
6 tens
33 + 66 =
99
63 + 19 =
82
55 - 32 =
23
45+46=
91
What number is in the tens place in the number 75?
7 tens (70 is also acceptable)
67 + 22 =
89
78 + 19 =
97
89 - 76 =
13
55+13+21=
89
How many tens and ones are in 98?
9 tens and 8 ones
86+13=
99
55+39=
94
99-78=
21
12+34+42=
88