CBA Day 1 2024

Front

What is the formula to find the total number of items when given a percentage and the number of items that represent that percentage?

Back

Total Items = (Number of Items / Percentage) * 100

Front

If 45% of the books in a library are nonfiction and there are 351 nonfiction books, how do you calculate the total number of books?

Back

Total Books = (351 / 0.45) = 780 books

Front

What is the ratio of red flowers to yellow flowers in Emma's garden?

Back

The ratio of red flowers to yellow flowers is 7:4.

Front

How do you find the number of blue flowers in a garden if you know the total number of flowers and the ratios of different colors?

Back

Use the total number of flowers and the ratios to find the number of each color. For example, if the total is 160 and the ratio is 7:4:9, calculate the total parts (7+4+9=20) and then find the number of blue flowers: (9/20) * 160 = 72 blue flowers.

Front

What is the cost of fabric if each yard costs $4.30 and you need 3.1 yards?

Back

Total Cost = 3.1 yards * $4.30/yard = $13.33.

Front

How do you calculate the number of students in a specific grade if you know the total number of students and the percentage that are in that grade?

Back

Number of Students in Grade = Total Students * (Percentage / 100). For example, 900 students * 0.37 = 333 6th graders.

Front

If Liam has 4.8 liters of juice and each cup holds 0.12 liters, how do you find out how many cups he can fill?

Back

Number of Cups = Total Juice / Juice per Cup = 4.8 liters / 0.12 liters = 40 cups.

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare proportions.

Front

What does it mean to find a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How do you convert a decimal to a percentage?

Back

To convert a decimal to a percentage, multiply the decimal by 100 and add a percent sign. For example, 0.45 = 45%.