Blue Bonnet Module 2 Review

Front

What is a composite number?

Back

A composite number is a positive integer that has at least one positive divisor other than one or itself. In other words, it can be divided evenly by numbers other than 1 and itself.

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How do you find the cost of one item when given the total cost and the number of items?

Back

To find the cost of one item, divide the total cost by the number of items. For example, if the total cost is $49.99 for 4 movies, the cost of one movie is $49.99 ÷ 4.

Front

What is the importance of estimating in mathematics?

Back

Estimating helps to quickly determine an approximate value, making it easier to check the reasonableness of calculations and to make quick decisions.

Front

What does it mean if there is a zero in the tenths place of a decimal?

Back

A zero in the tenths place indicates that there are no tenths in the number. For example, in the number 0.20, the tenths place is 2, and the hundredths place is 0.

Front

How do you calculate the total number of tires in a parking lot with bikes and cars?

Back

To calculate the total number of tires, multiply the number of bikes by 2 (since each bike has 2 tires) and the number of cars by 4 (since each car has 4 tires), then add the two results together.

Front

What is the formula to find the average cost of an item?

Back

The average cost of an item can be found by dividing the total cost by the number of items. Formula: Average Cost = Total Cost ÷ Number of Items.

Front

What is a remainder in division?

Back

A remainder is the amount left over after division when one number cannot be divided evenly by another. For example, in 10 ÷ 3, the quotient is 3 and the remainder is 1.

Front

What is the difference between a prime number and a composite number?

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A prime number has exactly two distinct positive divisors: 1 and itself. A composite number has more than two positive divisors.

Front

How do you estimate the cost of an item when given a total?

Back

To estimate the cost of an item, round the total cost to a simpler number and then divide by the number of items. For example, if the total is $49.99 for 4 items, round to $50 and estimate $50 ÷ 4 = $12.50.

Front

What is the significance of the tens place in a number?

Back

The tens place in a number indicates how many groups of ten are present. For example, in the number 47, the 4 is in the tens place, representing 40.