10 x 3
30
Erin has 17 more books than Isabella.
Isabella has 10 books. How many books does Erin have?
10 + 17 = ?
27 books
How many tens are in this number?
54
5
10 times 10
100
453
How many hundreds are there?
4
4 x 3
12
The second grade has 19 more students than the first grade. The second grade has 50 students. How many students does the first grade have?
69 students
How many months are in a year?
21 x 2 = ?
24
163
How many tens are there?
6
7 x 3 = ?
21
There are 11 more adults than children at a craft fair. There are 54 adults at the craft fair. How many children are at the craft fair?
54 - 11 =?
43 Children
How many days are in a week?
7
50 x 3 = ?
150
150
How many ones are there?
0
10 x __ = 50
5
Caleb is 17 years old. His sister is 12 years younger. How old is Caleb's sister?
17 - 12 = ?
5 years old
How many hundreds are in this number?
347
3
23 x 2 = ?
46
2,345
How many hundreds are there?
3
6 x 5 =
30
Dylan and his friends had some blueberries. They ate 39 blueberries. They have 21 blueberries left. How many blueberries did Dylan and his friends have at first?
39 + 21 = ?
60 blueberries
25, 30, 35, ____, 45, 50
What is the missing number?
40
25 x 2 = ?
50
6,342
How many tens are there?
4