ADDITION
5 + 10 =
15
8 – 4 =
4
FIND THE MISSING NUMBER
2, 4, ___ , 8
6
1 x 2 =
2
These are ______ numbers
1, 3, 5, 7, 9
Odd Numbers
10 + 15 =
25
6 - 3 =
3
FIND THE MISSING NUMBER
3, 6, 9, 12, ___
15
3 x 4 =
12
These are ______ numbers
2, 4, 6, 8, 10
Even Numbers
8 + 8 =
16
8 - 7 =
1
FIND THE MISSING NUMBER
5, __ , 15, 20
10
8 x 2 =
16
the process of finding the total, or sum, by combining two or more numbers
Addition
12 + 24 =
36
36 - 24 =
24
FIND THE MISSING NUMBER
__ , 20, 30, 40
10
10 x 6 =
60
the process or skill of taking one number or amount away from another.
Subtraction
100 + 5 =
105
62 - 57 =
5
FIND THE MISSING NUMBER
1, 3, 5, ___
7
11 x 9 =
99
when you take one number and add it together a number of times.
Multiplication