Addition
18+40=?
58
19-2=
17
63-23=?
40+23=63
56-35 is about
60-40=20
Brian paints 28 stones. He paints 12 of them blue. He paints a small fish on 7 others. He gives away 15 stones. How many stones does he keep?
13 stones
24+61=?
85
44-40=?
4
27-13=?
14+13=27
88-41 is about
90-40=50
Joe has 25 pictures. He finds 4 more. Then he takes 17 pictures. How many pictures does Joe have in all?
46 pictures
53+2+14=?
69
83-5=?
78
98-5=?
93+5=98
75-27 is about
80-30=50
18 ducks are in the park. 9 ducks fly away. Then 26 more ducks come. How many ducks are in the park now?
35 Ducks
78+15=?
93
95-27=?
68
82-7=?
75+7=82
62-9 is about
60-10=50
Mark bakes 28 cookies. 12 of the cookies are chocolate chip. How many cookies are not chocolate chip?
16 cookies
24+34+4=?
62
49-2-30=?
17
76-8=?
68+8=76
89-55 is about
90-60=30
Mary wants to use 35 different colors to paint. she finds 9 colors in one box and 13 in another. How many more colors does she need?
13 more colors