Perimeter/Area
What do you do with Perimeter?
You add the sides outside.
Add: 7+9=
16
Subtract: 10-3=
7
58 which number is in the tens place?
5
3X0=
0
What do you do with the area?
You Multiply!
Add:
30+27=
57
subtract:76-34=
42
359: which number is in the hundreds place?
3
5x3=
15
What is the perimeter of the rectangle:

10+10+4+4=28 Cm
Add: 307+143=
450
Take away: 78-40
38
675: write in expanded form
600+70+5=675
8x8=
64
What is the are of this shape?

5 X 3= 15
Add: 1234+5678
6912
400-373=
27
6789 which number is in the hundreds place?
7
20X3=
60
What is the perimeter of this shape:
12+12+7+7= 38cm
Add:6890+1098
7988
5768-2341=
3427
7869: write in expanded form
7000+800+60+9=7869
56x2=
112