Number Sense
What number comes after 49?
50
7+3+=__
10
Which is longer: a pencil or crayon?
Pencil
15-7=__
8
You have 20 apples. You give away some apples. Now you have 12.
How many did you give away?
You gave away 8 apples.
What number is 10 more than 23?
33
12+4=__
16
How many minutes are in 1 hour?
60 minutes
24-6=__
18
A crayon is about 5 feet long. A book is about 10 inches long.
Which is longer? How do you know?
What number is 10 less than 67
57
15+6=__
21
How many inches are in a foot?
12 inches.
42-10=__
32
What number has 3 tens and 6 ones?
Now add 10 more to that number. What is the new number?
46
Fill in the missing numbers:
35, 40, 45, __, __, 60
50, 55
23+10=__
33
If a movie starts at 4 o'clock and ends at 5 o'clock, how long is the movie?
1 hour.
33-8=__
25
There are 23 birds in a tree. 7 fly away. Then 6 more birds come.
How many birds are in the tree now?
22 birds
Which is true?
A) 72<27
B) 45>54
C) 63>52
C
18+7= __
25
A black string is 7 inches long. The green string is 4 inches longer than the black string. How long is the green string?
11 inches
60-20=__
40
A number is greater than 30 but less than 40.
It has 5 ones. What is the number?
35