Addition
8+8
16
6-3
3
2x0
0
The result of adding.
What is total?
Upon finishing the treehouse, Charlie's mother served them freshly baked cookies. If Charlie ate 15 cookies and his father ate 5. How many cookies did Charlie and his father eat?
20
7+2
9
8-4
4
1x5
5
Taking any number away from another.
There are 12 bird families living near the mountain. If 6 bird families flew away for winter, how many bird families were left near the mountain?
6 birds were left near the mountain
10+9
19
10-5
5
2x4
8
Finding the total, or sum, by combining two or more numbers.
What is addition?
Some deer families are also moving out to avoid the shortage of grass that will result from the snow. If there are 79 deer families in the area and 45 of them stayed, how many deer families moved out?
34 deer families moved out
11+11
22
14-7
7
4x5
20
What is the equation?
In order to start constructing the house. Charlie and his father needed to gather some wood from the forest. If they initially have 15 extra planks of wood in the house and Charlie and his father got 10 planks of wood each. How many pieces of wood do they have in total?
35 pieces of wood
12+10
22
20-10
10
5x2
10
Is represented by the sings cross 'x', asterisk '*' or dot '•'.
What is multiplication?
The treehouse is almost done; all they need is to paint it. His father estimated that they will use 10 ounces of white paint, 15 ounces of green paint, and 5 ounces of brown paint. How many ounces of paint would they buy in total?
30 ounces of paint