Subtraction within 100
What is 47-1?
46
50+10?
60
What is 1 more than 5?
6
What is 10 more than 10?
10
Enoch goes to the gift shop. There are 75 t-shirts on the rack. The store clerk puts out 10 more t-shirts. How many t-shirts are on the rack now?
75+10= 85 t-shirts
?=31-1
30
84+7=?
91
What is 1 more than 19?
20
What is 10 more than 22?
32
James is looking at the fish. There are 50 fish in the tank. There are 8 blue fish in the tank. The rest are orange. How many orange fish are in the tank?
50-8=42 orange fish
?=22-10
12
109=99+?
10
What is 1 less than 70?
69
What is 10 more 40?
50
Jessica goes to the movie theater. There are 45 seats. 6 seats are taken. How many seats are open? Use an open number line to show your work.
45-6= 39 seats are open
64-10=?
54
110+10?
120
What is 1 less than 120?
119
15
Carl's mom packs a bag of 50 pretzels. Carl eats 8 pretzels as a snack. How many pretzels does he have left. Show your work using an open number line.
50-8= 42 pretzels left.
75-6=?
69
66+9=?
75
What is 1 more than 120?
121
What is ten less than 99?
89
Caleb's mom goes to the aquarium. She has 86 Fun Dollars. She buys some tickets. Now she has 9 fun dollars. How many Fun Dollars are the tickets. Show your work as regrouping tens and ones.
86-9=77 Fun Dollars
86-?=9 Fun Dollars Left