addition within 20
15+2=
17
20-10=
10
12-_=12
0
Johnny has 18 stickers in his backpack. He gives 7 stickers away to his friends. How many stickers does he have now? Johnny has ______ stickers
18-7=11
8+8=
16
13-7=
6
10+_=19
9
Hannah has 14 erasers in her desk. One of her friends gave her 6 more erasers. How many erasers does Hannah have now? Hannah has _______ erasers.
14+6=20
9+3=
12
14-7=
7
_-7=7
14
Dylan buys 12 pencils. His mom buys him 6 more pencils. How many pencils does Dylan have now? Dylan has ________ pencils
12+6=18
14+4=
18
16-8=
8
_+9=17
8
Fredy has 15 red and black markers. He has 5 red markers. How many black markers does Fredy have? Fredy has ______ black markers.
15-5=10
6+4=
10
18-11=
7
14-_=8
6
Ava had 20 crayons in her crayon box. Ava now only has 9 crayons. How many crayons did Ava lose? Ava lost_____ crayons.
20-9=11