Decimals
3.4 + 1.2
4.6
There are 2 cats and 3 dogs in the yard. Write the ratio of cats to dogs.
2:3 or 2 to 3 or 2/3
What is 50% of 20?
10
Simplify 6/12
1/2
What is the greatest common factor and least common multiple of 12 and 54?
6 and 108
7.89 − 2.4
5.49
On a bus, there are 15 adults and 10 children. Write the ratio of children to adults in simplest form.
2:3
Convert 25% to a decimal.
0.25
2 x 1/3
2/3
What is the first step in evaluating the expression (12.9 - 3.1) × 6.2 - 2 + 43
Parentheses
A pencil costs $1.28 and an eraser costs $0.75. How much do both cost together?
2.03
The ratio of boys to girls in Ella’s grade is 3 to 4. The ratio of boys to girls in Minh’s grade is 4 to 5. Each grade has a total of 20 girls. How many boys are in each grade?
Ella’s grade has 15 boys, and Minh’s grade has 16 boys.
A shirt is $20.50 and is on sale for 10% off. How much money is taken off the price?
1 1/3 x 3/8
1/2
A movie theater charges $4 for a ticket and $2 extra for every snack you buy.
Write an expression for the total cost using s for the number of snacks.
4 + 2s
4.5 ÷ 0.5
9
A bicyclist rides 45 miles in 3 hours. What is the speed in miles per hour?
15 mph
What percent is the fraction 3/8?
37.5%
The construction of an 80-meter bridge was finished in 12 weeks. How much of the bridge was built on average each week?
6 2/3 meters of the bridge were built each week.
Evaluate the expression 2x + 3x for x = 1.7.
8.5
Each batch of cookies is 8.9 oz. What is the weight of 2.5 batches of cookies?
The weight of 2.5 batches of cookies is 22.25 oz.
Which is the better buy: 12 ounces of trail mix for $6.84 or 15 ounces for $8.55?
15 ounces for $8.55
A student got 18 questions correct out of 20. What percent is that?
90%
A team of 7 construction workers worked together to build 3 sheds in 10 days. How much of a shed did each of them build?
Each of the worker built 3/7 of a shed.
For each expression, select all equivalent expressions from the list: 24x – 18
A. 6(4x −3) B. 6 C. 4(6x – 4) D. 12x − 9
A.