Addition
40+2=
10-2=
8
10+_=21
11
There are 13 cars stuck in traffic. 4 more cars get stuck in traffic. How many cars are stuck in traffic altogether?
13+4=17
3+2=5
True!
42+3=
45
15-7=
8
25+_=50
25
There were 20 ants on a log. 15 ants climbed down the log. How many ants are left on the log?
20-15=5
10+1=101
False
36+12=
48
25-18=
7
19+_=22
2
There are 30 cookies to be sold at the corner store. Someone bought 19 cookies. How many cookies are left?
There are 11 cookies left.
30-19=11
12+3=15
True
85+36=
121
78-69=
9
_+80=100
20
There were 99 kids on a field trip to the zoo. 81 students brought lunch. How many students needed to buy lunch?
18 students needed to buy lunch.
99-81=18
100-100=100
False!
144+76=
220
117-62=
55
_+66=100
44
Last year there were 84 students at Dr. Weeks with perfect attendance. This year there were 99 more students with perfect attendance. How many students had perfect attendance in the last 2 years?
There were 183 students with perfect attendance in the last 2 years.
84+99=183
20-19=2019
False