Math Unit 3 Pre-Post Assessment

What goes in the box to make the number sentence true?

• 6

• 5

• 14

Matthias had 12 cupcakes. He gave 7 cupcakes to his brother. Which number sentence shows how many cupcakes Matthias has left?

• 12-7=5

• 12+7=19

• 12-__=7

Mr. Hill made a chart showing the way his second graders get home from school. How many more students ride the bus than walk home from school?

• 24 students

• 10 students

• 11 students

Lacy collects stickers in a notebook. She has 9 heart stickers and 6 puppy stickers. How many heart and puppy stickers does Lacy have in her notebook?

• 3 stickers

• 15 stickers

• 14 stickers

Mrs. Johnson has 15 students enrolled in her art class. Eight students were absent on Monday. How many students were in class on Monday?

• 7 students

• 23 students

• 8 students

While traveling on the road, Joshua counted the number of vehicles shown in the table. Which strategy could be used to find the number of vehicles Joshua counted?

• 21 + 23 + 34 + 12

  Add 2 + 2 + 3 + 1 to get 8.

  Add 1 + 3 + 4 + 2 to get 10.

  Record the 8 then the 10 to get 810.

  Joshua counted 810 vehicles.

• 21 + 23 + 34 + 12

  Add 1 + 3 + 4 + 2 to get 10.

  Record the 0 for the ones place.

  Add 20 + 20 + 30 + 10 to get 80.

  Record the 8 for the tens place.

  Joshua counted 80 vehicles.

• 21 + 23 + 34 + 12

  Add 20 + 20 + 30 + 10 to get 80.

  Add 1 + 3 + 4 + 2 to get 10.

  Add 80 + 10 to get 90.

  Joshua counted 90 vehicles.

The Taylor family loves roller coasters. The four states shown in the table have the greatest number of roller coasters in the United States. Which strategy could be used to find the number of roller coasters in Texas, California, and Ohio have in all?

• 35 + 38 + 32

  Add 3 + 3 + 3 to get 9.

  Add 5 + 8 + 2 to get 15.

  Record the 9 then the 15 to get 915.

  Texas, California, and Ohio have 915 roller coasters in all.

• 35 + 38 + 32

  Add 30 + 30 + 30 to get 90.

  Add 8 + 2 to get 10.

  Add 90 + 10 to get 100.

  Add 100 + 5 to get 105.

  Texas, California, and Ohio have 105 roller coasters in all.

• 35 + 38 + 32

  Add 5+8+2 to get 15.

  Record the 5 for the ones place.

  Add 30 + 30 + 30 to get 90.

  Record the 9 for the tens place.

  Texas, California, and Ohio have 95 roller coasters in all.

There are 31 students in the classroom. Some students left for the computer lab. Now there are 18 students in the classroom. How many students left for the computer lab?

• 14 students

• 13 students

• 49 students

Ms. Duncan teaches 67 students art on the weekends. She took 29 of them to an art museum. Which strategy could be used to find the number of students that did not go to the art museum?

• 67 - 29

  Subtract 20 from 60 to get 40.

  Subtract 7 from 9 to get 2.

  Add 40 + 2 to get 42.

  42 students did not go to the art museum.

• 67 - 29

  Because 9 cannot be subtracted from 7, decompose 67 into 50 and 17.

  Subtract 9 from 17 to get 8.

  Subtract 20 from 60 to get 40.

  Add 40 + 8 to get 48.

  48 students did not go to the art museum.

• 67 - 29

  Add 1 to both numbers to get friendly numbers 68 and 30.

  Subtract 30 from 68 to get 38.

  38 students did not go to the art museum.

Fun Games sold a total of 745 copies of a new video game in the first 3 days it was on sale.

The first day 362 copies were sold. The second day 228 copies were sold. The rest of the copies were sold on the third day.

How many copies of the new video game were sold on the third day?

• 155 copies

• 150 copies

• 590 copies