Addition
Solve the math problem:
2+5= ___
7
Solve the math problem:
5-4=
Number before 5
4
Number after 6
7
X X X X X
5
Solve the math problem:
4+4= ___
8
Solve the math problem:
9-6=
Number before 8
7
Number after 3
4
X X X X
X X X
7
Solve the math problem:
5+7=
12
Solve the math problem:
10-3=
Number before 10
9
Number after 11
12
X X X X X
X X X X X
10
Solve the math problem:
8+3=
11
Solve the math problem:
12-10=
Number before 15
14
Number after 17
18
X X X X X X X
X X X X X X
13
Solve the math problem:
10+7=
17
Solve the math problem:
15-5=
19
Number after 19
20
X X X X X X
X X X X X X
X X X X X X
18