FRACTIONS
A recipe calls for 3/4 cup of sugar, but you only want to make half the recipe.
How much sugar do you need?
Half of 3/4 is:
3/4×1/2=3/8
Answer: 3/8 cup
Solve for x:
4x + 7 = 23
4X = 23-7
4X = 16
X = 16 / 4
X= 4
A rectangle has a length of 10 cm and a width of 6 cm.
What is the area of the rectangle?
HINT: AREA = LENGTH X WIDTH
10 cm x 6 cm = 60 cm2
The temperature was 12°C in the afternoon, then dropped by 18°C at night.
What is the temperature at night?
12 c - 18 c = -6 degrees Celsius
If 3 notebooks cost $6, how much would 5 notebooks cost at the same rate?
If 3 notebooks cost $6, then 1 notebook costs $2.
So 5 notebooks cost 5×2=10
Answer: $10
2/3 + 1/6 = ?
Common Denominator is 6:
4/6 + 1/6 = 5/6
answer: 5/6
x + 9 = 17
what is x?
17 - 9 = 8
answer: x=8
Find the perimeter of a square with side length 7cm.
Hint: Perimeter is adding all sides of the square
Perimeter= 7 x 4
answer: 28 cm
-7 + 12 = ?
answer: 5
If 4 apples cost $8, how much do 7 apples cost?
4 apples = $8
1 apple = $2
7 x $2 = $14
answer: $14
5/8 - 3/8 = ?
answer: 2/8 or 1/4
5x = 35
what is x?
35 divided by 5
answer: x=7
A triangle has a base of 8 cm and a height of 5 cm. What is the area?
Hint: Area of a Triangle = 1/2 x base x height
A = 1/2 x 8 x 5
A = 40 / 2
A = 20 cm2
-15 -6 = ?
answer: -21
120 miles in 2 hours is 60 mph
60 mph x 5 hrs = 300
answer: 300 miles
A pizza is cut into 12 slices. You eat 1/3 of it. How many slices did you eat?
1/3 of 12 slices
12 divided by 3
answer: 4 slices
2x - 4 = 10
find x
2x - 4 = 10
2x = 10 + 4
2x = 14
x = 14/2
x = 7
A rectangle has length of 12 cm and width of 4 cm. What is the perimeter?
Hint: Add all sides
12 (2) + 4 (2) = Perimeter
24 + 8 = 32
Perimeter = 32
9 - (-4) = ?
answer: 13
The ratio to boys to girls in a class is 3:5
If there are 15 boys, how many girls are there?
3:5
boys:girls
15 boys (3 x 5 = 15)
5 x 5 = 25 girls
answer: 25 girls
3/5 x 2/3 = ?
answer: 6/15 = 2/5
3x + 2 = 20
find x
3x + 2 = 20
3x = 20 - 2
3x = 18
x = 18/3
x = 6
Find the Area of a square with a width of 6 cm.
6cm x 6cm = 36 cm2
A submarine is at -50 meters and rises 30 meters. What is its new position?
answer: -50 + 30 = -20 meters
If 6 pencils weigh 30 grams, how much do 10 pencils weigh?
6 pencils - 30 grams
1 pencil = 5 grams each
10 pencils x 5 grams = 50 grams