Addition&Subtraction to 10
2+4=
6
11+6=
17
15-10=
5
What is this symbol called -?
Subtraction symbol or minus sign
Susie has 3 stickers. John gave her 1 more. How many stickers does she have altogether?
Susie has 4 stickers
3+1=4
5+5=
10
10+8=
18
14-7=
7
What is this symbol called + ?
Addition symbol or plus sign
Mary saw 5 seagulls at the beach. Her sister, Cate saw 5 seagulls too. How many seagulls did they see in all?
5+5=10
7-3=
4
7+8=
15
20-11=
What is this symbol called = ?
Equal sign
Jerry collects toy cars. He has 10 cars and gave 3 away to his neighbor. How many toy cars does Jerry have left?
Jerry has 7 toy cars left.
10-3=7
3+6=
9+7=
16
17-9=
8
What is this called
8+2=10 ?
Addition sentence
Sam had 15 bracelets. At her birthday party, she came 5 away. How many does she have left?
Sam has 10 bracelets left.
15-5=10
9-5=
4
12+5=
17
18-12=
6
What is this called
19-9=10?
Subtraction sentence
Ms. Down has 16 students in her class in August. In September 2 new students are added to her class. How many students does Ms. Down have in all?
Ms. Down has 18 students in all.
16+2=18