PEMDAS
FIND THE AREA
Brain Teasers
Adding and Subtracting Integers
Algebra
100
4 + 3 X 20
64
100
What is the area of a rectangle if the length is 7ft and the width is 20ft?
L x W =
7 x 20 = 140ft2
100
4 + 3 = 7
100
12 - ( -3) =
15
100
2x = 8
x = 4
200
64 + 12 x 2
88
200
A rectangle has a length of 6 inches and a width of 4 inches. What is the area?
L x W =
24 in2
200
A boy is 2 years old, his brother is half as old as him. When the first boy is 100, how old will his brother be?
2/2=1 yr
100-1=99 years old
200
8 - (-12)
20
200
3x = 6
x = 2
300
12 - 23 + (9 x 3)
16
300
The area of a rectangular table is 240 square units. Find the length of the table if the width of the table is 20 units.
A. 24 units B. 28 units C. 12 units D. 18 units
C. 240/20 = 12 units
300
What is the next number in this sequence: 2, 5, 9, 14,...
20
(2+3=5; 5+4=9; 9+5=14; 14+6=20; and so on.)
300
5 - 19 =
-14
300
4x = 24
x = 6
400
2 - 1 + ( 3 x 3 )
10
400
Find the area of a circle with a radius of 4 inches. Use A = πr2
3.14 x 42
3.14 x (4 x 4)=
50.24 in2
400
Mr. Smith has 4 daughters, and each daughter has one brother. How many children does Mr. Smith have?
He has 5 children. All of the daughters have the same 1 brother.
400
(-20) - 9 =
-29
400
2x + 7 = 11
x = ?
2 x 2 + 7 = 11
x = 2
500
(4 + 3) x 10 -2 + (5 x 6)
7 x 10 - 2 + 30 =
98
500
Find the area of a circle with a diameter of 12cm.
A = πr2
12/2=6
3.14 x 62 = 113.04 cm2
500
apple = 10
banana = 1 or 4
coconut = 1 or 2
1 + 10 + 3 = 14 or 2 + 10 + 4 = 16
We will accept 14 or 16
500
(-17) - (-1) =
-16
500
If a=6, b=4
What is 2 + a x b
2 + 6 x 4
2 + 24
26