addition
2+2
4
2-3
-1
2*4
8
4/2
2
18
8+8
16
16-12
4
9*8
72
125/5
25
25%
40+40
80
50-20
30
50*30
1,500
180/18
10
53-42
Hint: An exponent says how many times a number is multiplied by itself. Ex: 83=8x8x8
109
1000+502
1,502
4030-213
3,817
473*82
38,786
477/27
17.67
6(4/2)-12
9000+200+20
9,220
430-293
137
495*117*18
1,042,470
600/10/7
8.57
John is building a rectangular pig pen on his new farm. He has 300 ft. of fencing. If one of the sides is twice as long as the other, what is the area of land the pen can contain?
(Hint: The area of a rectangle is the long side times the short side.)
(x+2x +x +2x) = 300
6x=300; x=300/6=50
50 x 100 = 5000 ft.2