2 Digit Addition
52+35=?
87
100+200=?
300
The column you always start with when solving an addition equation.
Ones Column
5x2=?
10
45+33=?
78
245+356=?
601
The second column you solve for in an addition equation.
Tens Column
4x3=?
12
43+28=?
71
425+547=?
972
What is the third column we solve for in an addition equation?
Hundreds Column
A multiplication equation that shows 3 row of 6.
3x6
75+16=?
91
653+138=?
791
If there was a fourth column in our addition equation, what would it be called?
Thousands Column.
What is our strategy we use for solving story problems?
CUBES
64+67=?
131
201+199=?
400
What is another name for an equation that also starts with an "E"?
Expression.
What is the commutative property?
3x5=5x3