Adding/subtracting
____ + 7 = 15
8
What are the two units of measurement on a standard ruler?
centimeter and inches
Mia had 15 stickers. Her friend gave her 8 more stickers. Then, Mia gave 6 stickers to her brother. How many stickers does Mia have left?
17 stickers
42 + 27 =?
69
____ - 36= 22
58
How long is the eraser ?
7 centimeter
There were 25 students on the playground. 8 students went inside. Then, 6 more students came outside. How many students are on the playground now?
23 students
77 - 32 = ?
45
27 + 38 = ?
65
Which estimate makes the most sense for the height of a classroom door?
80 inches
A library had 46 books. The librarian bought 18 more books. Then, students checked out 25 books. How many books are left the library?
39 books
46 + ___ = 83
37
100 - 34 = ?
66
How long is the marker ?
10 cm
A school collected 85 cans on Monday and 47 cans on Tuesday. On Wednesday, they donated 68 cans to a food pantry. How many cans are left in the school?
64 cans
74 − 38 = 44 Is this correct? explain?
The student did not regroup correctly. 74 − 38 = 36.
13 + 39 + 27=?
79
Mia measures the length of a glue stick in centimeters and in inches. The two measurements are 4 and 10. Which measurement is in centimeters and which is in inches? Explain how you know.
10 centimeters and 4 inches. I know because centimeters are smaller than inches, so it takes more centimeters to measure the same object.
Ava collected 125 seashells at the beach. Liam collected 47 fewer seashells than Ava. Then, Liam gave 28 seashells to his sister. How many seashells does Liam have?
50 seashells
Mia had a ribbon that was 85 centimeters long. She cut off 28 centimeters to decorate a gift. Then, she cut off another 19 centimeters. How long is the ribbon now?
38 centimeters