multiplying fractions
dividing fractions
Solving Equations
Real World Problems
customary system
100
Estimate this product: 3 5/8 x 2 9/10
round to the nearest whole number: 4 x 3 = 12
100
Estimate this quotient: 12 1/4 ➗ 5 5/6
round mixed number to the nearest whole number: 12 ➗ 6 = 2
100
solve this equation: a/7 = 8
56
100
A mother is 1 1/4 times as tall as her daughter. if the girl is 52 inches tall, how tall is her mother?
1 1/4 x 52 = 65 inches
100
choose an appropriate unit to measure the weight of a bag of oranges and write the abbreviation for that unit
pound, lb.
200
Find the product: 1/12 or 60
1/12 x 60 = 5
200
Writing in math: summarize how to divide fractions (you can use a Mnemonic tool)
KRS= Keep the first fraction as is (or change a mixed number to an improper fraction), Reverse the sign to multiplication, the "switch" the second fraction to its reciprocal
200
writing in math: how do you solve a fraction equation (like 2/3 x = 8) using multiplication?
multiply by the reciprocal (multiply each side by 3/2)
200
Construction: A ceiling in an attic 24 feet wide needs insulation. Each strip of insulation is 1 1/3 feet wide. How many strips of insulation are needed to fit the width of the attic?
24 ➗ 1 1/3 = 16 strips
200
would you use "fluid ounces" or "ounces" to measure the weight of a slice of bread?
ounce (fluid ounces measure capacity of a liquid, like a mouthful of mouthwash)
300
find this product: 4/9 x 3/10
2/15
300
find the quotient: 4 ➗ 3/5
4/1 x 5/3 = 6 2/3
300
solve this equation: 3/5 n = 9
multiply each side by 5/3, n = 15
300
Ms. Martinez bought 11 1/4 yards of fabric to make identical costumes for all the members of the chorus in the school musical. Each costume used 2 1/4 yards of fabric. How many costumes did Ms. Martinez make?
11 1/4 ➗ 2 1/4 = 5 costumes
300
If you are converting from a smaller unit to a larger unit, do you multiply or divide?
divide
400
find the product: 5 1/3 x 2 1/4
12
400
find the quotient: 3/4 ➗ 1/8
6
400
solve this equation: 3/20 x = 5
(multiply each side by 20/3) 33 1/3
400
Design: An artist is planning to make a painting that is 1 3/4 ft by 2 5/8 ft. The size of the painting may change depending on the available space. What size will the painting be if its length and width are increased to 1 1/3 of their original sizes?
2 1/3 ft by 3 1/2 ft
400
complete the statement: 5,500 lb = ____ t
2 3/4 t
500
find the product: 3 3/4 x 5 1/3
20
500
find the quotient: 2 1/2 ➗ 1 1/8
2 2/9
500
Shopping: You buy a shirt and a pair of pants. The price of the shirt is 5/6 the price of the pants. The shirt costs $12.50. Write an equation and solve how much do the pants cost?
5/6 p = 12.50; $15
500
Baking: A recipe for a loaf of banana bread requires 2/3 cup of vegetable oil. You have 3 cups of oil but need 1 cup for a different recipe. how many loaves of banana bread can you make with the rest of the oil?
3 -1 = 2 cups. 2 ➗ 2/3 =3 loaves
500
Mr Joyce bought 20 pounds of chicken nuggets for lunch today. If each student receives a 4 ounce serving on their first pass through the serving line, how many students can be served? If there are 111 students in the middle school, will there be enough for the middle school for lunch?
convert 20 pounds to ounces (20 x 16 = 320) and divide by 4 = 80 students. Since there are 111 students in the middle school, probably not!
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