Greatest Common Factor / Least Common Multiple
Real-Life Math
Do you remember Elementary School Math?
Math for Shopping
8th Grade Math
100

What is the greatest common factor of 24 and 36?

12

100
How many feet in 1 yard?

3 feet

100

Which digit is in the hundredths place?

41,387.252

5
100
Madeline goes shopping during a 50% off sale. She buys a calculator for $31. What was the original price?

$62

100

Evaluate the expression for g = 8. 

15 - 2g = ____

-1

200

What is the greatest common factor of 18 and 5?

1

200

Scary masks cost $15.52 each. Ted buys 9 scary masks. How much does Ted spend?

$139.68

200

Naomi saved $24 in June, $34 in July, and $42 in August. Then Naomi spent $10 on school supplies and $35 on new clothes. How much money does Naomi have left?

$55

200

If chickpeas cost $2 per pound and Maura bought 1.25 lbs of chickpeas, how much did she spend?

$2.50

200

Write two equivalent ratios to 4:6

Answers vary 

Ex: 2:3, 8:12, 40:60

300

What's the least common multiple of 10 and 5?

10
300

Convert 59°F from degrees Fahrenheit to degrees Celsius, using the formula below.

C = 5/9 × (F – 32)

15°C

300

Put these fractions in order from least to greatest: 

11/13      1/3      4/7      2/5


1/3, 2/5, 4/7, 11/13

300

Sales tax rate is 15%. If Julian buys a bicycle priced at $52, how much tax will he pay?

$7.80

300

Salem Auto Repair originally paid its mechanics $40 per hour. Now that there is a new owner, mechanics make $46 per hour. What was the percent of increase in pay?

15%

400

Dakota has two pieces of cable, one 12 feet long and the other 8 feet long. For a science project, she wants to cut them up to produce many pieces of cable that are all of the same length, with no cable left over. What is the greatest length, in feet, that she can make them?

(AKA what is the greatest common factor of 12 and 8?)

4 feet

400

What is the median in this set of data?

6   3   7   6   4   6   10

6

400

Solve:

2 ÷ 4/5 =

2.5 (or 10/4)

400

A store pays $66 for a lawnmower and then increases the price by 20%. What is the new price?

$79.20

400

Jasmine is having friends over to watch a football game. She has 2.5 hours until her guests arrive. She spends 2/5 of that time cleaning and the rest of the time preparing snacks. How much time does Jasmine spend preparing snacks? 

1.5 hours

500

Adam's Pizza sells cheese pizzas cut into 11 slices each and pepperoni pizzas cut into 6 slices each. If Adam's Pizza sold the same number of slices of each type of pizza yesterday, what is the smallest number of slices of each type that the restaurant must have sold?

66 slices
500

There are 18 students in the third grade and twice that number in the fourth grade. There are 17 boys and 17 girls in the second grade. How many students are in grades 2 through 4 altogether?

88 students

500

Type the missing number in this sequence:

1,    4,    16,  ____,    256,    1,024

64

500

Naomi wants to buy some potatoes. At Walmart she can get 4 lbs of potatoes for $5.76. At LA Mart she can get 7 lbs of potatoes for $9.24. Which is the better deal?

LA Mart

$1.44 per lb at Walmart  vs.  $1.32 per lb at LA Mart

500

If two angles in a triangle are equal to 35° and 55°, what is the measure of the missing angle?

AND what kind of triangle is this?

90°

Right Triangle