Summative Unit Assessment
On Monday, 4 students in second grade celebrated a birthday. On Wednesday, 9 students had a birthday. 6 students had a birthday on Thursday. How many students in all celebrated birthdays during this week?
Tyler had a party and invited 15 friends. Some of Tyler’s friends who were late to the party. 7 of his
friends were on time. How many of his friends arrived late?
7 + ? = 15
Sara had 8 pencils. Tina gave her 2 more pencils. Sara lost 3 of the pencils. How many pencils does
Sara have now?
Nate has 35 games. Jimmy has 17 fewer games than Nate. The model shows how many games Nate
has. Which equation can be used to find how many games Jimmy has?
Some students were in the gym. 18 more students came to the gym. There are now 44 students in the
gym. How many students were in the gym at the beginning?
? + 18 = 44
Jon had 9 baseball cards. He gave some to his friend. Jon has 6 baseball cards left. Which number sen-
tence could you use to show how many cards Jon gave his friend?
Which of the following expressions will have an even sum?
Look at the numbers in the list below. Which number is missing from the list?
8, 10, 12, ____, 16, 18, 20
Which expression could you use to show the number of stickers on each array below?
Jordan found the total number of Gummy Bears by adding 2+2+2+2+2.
Which is another way to find the total amount of Gummy Bears?
A.Find the sum of the following equation.
9 + 3 + 1 = ?
B. Explain a mental math strategy you could use to find the sum.