Word Problems
Emma has 5 more candies then Aydin, there are 20 candies total. How many candies does Aydin have?
Write an equation.
x + 5 = 20
x + 5 = 11
x + 5 = 11
x + 5 - 5 = 11 - 5
x = 6
2x + 1 = 3
2x + 1 = 3
2x + 1 - 1 = 3 - 1
2x/2 = 2/2
x = 1
Is the following equation equal?
2 + 4 - 7 = 11 - 9
No.
2 + 4 - 7 = 11 - 9
6 - 7 = 2
-1 = 2
What gets wet when drying?
Joan and Troy go out to eat. They split the bill and paid $13 each. How much was the bill?
Write an equation.
x / 2 = 13
-2 + m = 5
-2 + m = 5
-2 + 2 + m = 5 + 2
m = 7
6 + 2x = 10
6 + 2x = 10
6 - 6 + 2x = 10 - 6
2x = 4
x = 2
What changes need to be made to make this equations equal. Re-write the equation.
18 = 6
18 = 3 x 6
or
18 / 3 = 6
or
18 - 12 = 6
or
18 = 6 + 12
What goes all the way around the world but stays in a corner?
A stamp
Braelee goes shopping, she buys a t-shirt for $15, and pants for x amount of dollars. She spent $67 total.
How much were the pants?
x + 15 = 67
3x = 15
3x = 15
3x / 3 = 15 / 3
x = 5
2 =-5 + 7x
2 = -5 + 7x
2 + 5 = -5 + 5 + 7x
7 = 7x
7 / 7 =7x / 7
x = 1
What changes need to be made to make this equations equal. Re-write the equation
(2)(3) = 4
(2)(3) = 4 + 2
6 = 6
I shave every day, but my beard stays the same. Who am I?
A barber
A pirate steals 2300 pieces of gold. They hides x amount of gold on each of 3 islands. They also decides to keep 350 pieces of gold on the ship for safety. How much gold was on each island?
Write an equation.
3x + 350 = 2300
-12 = 3k
-12 = 3k
-12 / 3 = 3k / 3
-4 = k
2 = -5 + 7x
2 = -5 + 7x
2 = -5 + 5 + 7x
7 / 7 =7x / 7
x = 1
4 + 3 - 9 = 6 - 4 - 4
4 + 3 - 9 = 6 - 4 - 4
7 - 9 = 6 - 8
-2 = -2
Yes
What has a head and a tail, but no body?
A coin
Mr. Metexas gym class has 41 students. He makes x amount of groups with 7 students, and one group with 6 students. How many groups of 7 are there?
Write an equation.
7x + 6 = 41
x / 10 = 17
x / 10 = 17
(10)(x / 10) = 17(10)
x = 170
-8 + b / 2 = 12
-8 + b / 2 = 12
-8 + 8 + b / 2 = 12 + 8
b / 2 = 20
b = 40
Is this pair of equations equivalent?
4t = 8 and 4t+2 = 10
Yes.
4t = 8
4t/4 = 8 / 4
t = 2
4t + 2 = 10
4t + 2 - 2 = 10 -2
4t = 8
4t / 4 = 8 / 4
t = 2
If you have me, you will want to share me. If you share me, you will no longer have me. What am I?
A secret