8 + 3
11
51 - 10 =
41
Amir has 15 books. Layla has 7 books. How many books do the students have in all?
The student have 22 books in all.
15 + 7 = 22
Which tool would be best to use to measure the screwdriver?
a.) Yardstick
b.) meterstick
c.) measuring tape
d.) ruler
d.) ruler
Jamie has 15 flash cards. Harry has 8 more cards than Jamie. How many flash cards does Harry have?
Harry has 23 flash cards.
15 + 8 = 23
15 - 5 =
10
25 + 33 =
58
Samantha brought grapes to school for a snack. She had 27 green grapes and 17 red grapes. How many more green grapes did she bring to school than red grapes?
Fill in the blank: Samantha had _____ more green grapes than red grapes.
Samantha had 10 more green grapes than red grapes.
27 - 17 = 10
True or false: The best tool to use to measure a bicycle is a ruler.
False
Anna's hair use to be 19 inches long . Now it is 6 inches longer. How long is Anna's hair?
Anna's hair is 25 inches long.
19 + 6 = 25
6 + 7 =
13
44 - 24 =
20
Twenty-eight second-grade students went on a field trip to the zoo. The other 24 second-grade students stayed at school. How many second-grade students are there in all?
There are 52 second-grade students in all.
28 + 24 = 52
What tool would be best used to measure the eraser?
ruler
Jayla measured her puppet’s legs to be 23 centimeters long. The stomach is 7 centimeters long, and the neck and head together are 10 centimeters long. What is the total length of the puppet?
The total length of the puppet is 40 centimeters long.
23 + 7 = 30
30 + 10 = 40
5 + ___ = 13
8
58 + 25 =
83
39 books were on the top bookshelf. Marcy added 48 more books to the top shelf. How many books are on the top shelf now?
There are 87 books on the top shelf.
39 + 48 = 87
What tool would be best used to measure the hallway?
meter stick/meter tape
Duncan's shoe is 12 inches long. Anne's shoe is 7 inches shorter than Duncan's. How many inches long is Anne's shoe?
Anne's shoe is 5 inches long.
12 - 7 = 5
____ - 8 = 9
17
73 - 27 =
46
A second grade class of 29 students went to the Museum of African American History and Culture. 16 students from the class went outside to eat lunch. How many students from the second grade class are still inside the museum?
13 students are still inside the museum.
29 - 16 = 13
What unit of measure would give the best estimate to measure string?
a.) liters
b.) meters
b.) meters
Caleb has 37 more pennies than Richard. Richard has 40 pennies. Joe has 25 pennies. How many pennies does Caleb have?
Caleb has 77 pennies.
37 + 40 = 77