8-1
A ? shows the ______ in an equation.
unknown
There are 12 dogs at the park. Some dogs go home. Now 3 dogs are at the park. How many dogs went home?
9
In a subtraction problem, the total is the same as the ________.
whole
There are 15 kites. Some are flat and some are boxy How many of each kite could there be? Choose all the correct answers. A, B, C.
B & C
There are 13 stuffed animals. Some are tigers. 8 are zebras. How many are tigers? Which equations show the problem? a, b, c
B 8+?=13
C 13-?=8
You subtract one number from another to find the ______.
difference
Jake has 10 books in his backpack. He takes out 3 books. How many books are left?
7 books
A jar holds 14 marbles. There are 5 orange marbles and the rest are blue. How many marbles are blue?
9 blue marbles
There are 5 plates on Dean’s table.
He puts more plates on the table.
Now there are 13 plates on the table.
How many plates did Dean put on the table?
Write an addition equation that represents the problem.
5+?=13
Bonnie reads 12 books. Some are animal books, and some are science books. How many of each book does Bonnie read? Which equation shows the problem? A, B, C
A. 12-5=7
C. 9+3=12
in 12-7=5, 7 is one _____ and 5 is the other
part
Evan has some boxes to move. He moves 6 boxes. He has 5 more boxes to move. How many boxes did Evan start with?
11 boxes.
Yusrah buys 14 dog treats.
His dogs eat some of them.
There are 5 dog treats left.
How many treats did the dogs eat? (E)
14-5=9
There are 13 pieces of cheese on a plate.
Akela eats 7 pieces.
How many pieces of cheese are left? (E)
6 pieces.
Hannah has 12 tools. 4 are hammers, and the rest are wrenches. How many wrenches does she have?
8 wrenches
A __________ tells a story that uses numbers.
word problem
Mia buys 14 cups.
She buys 6 large cups and some small cups.
How many small cups does Mia buy?
Which equation matches the word problem? (E)
14−6=?
Kya stacks 15 blocks. Some blocks fall.
There are still 7 blocks standing.
How many blocks fall? (E)
15-7=8
There are 11 hats.
Some are blue and some are red.
How many hats are blue and how many are red?
Which equation matches the word problem?
A) 11 + ? = ?
B) ? + 11 = ?
C) ? = 11 + ?
D) 11 = ? + ? (E)
D
A diver sees 12 animals.
She sees some dolphins and some sea turtles.
How many dolphins and how many sea turtles does the diver see? Which are possible answers to the word problem?
B, C, D