Unit 5 Review

________ is the answer to a division problem.

• sum

• difference

• product

• quotient

Answer explanation

The answer to a division problem is called the quotient. The other options refer to different mathematical operations: sum (addition), difference (subtraction), and product (multiplication).

________ is the answer to a multiplication problem.

• sum

• difference

• product

• quotient

Answer explanation

The answer to a multiplication problem is called the product. The other options refer to different mathematical operations: sum (addition), difference (subtraction), and quotient (division).

_______ are numbers that are multiplied.

• remainder

• divisor

• dividend

• factors

Answer explanation

Factors are the numbers that are multiplied together to get a product. In this context, the correct answer is 'factors', as they represent the numbers involved in multiplication.

In a division problem when there is a decimal in the dividend but not in the divisor, what do I do first?

• Ignore the decimal

• Move the decimal to make the dividend a whole number

• Move the decimal straight up in the quotient

• Erase the decimal

Answer explanation

In division, when the dividend has a decimal and the divisor does not, you should move the decimal straight up into the quotient. This helps maintain the correct value during the division process.

________ is the answer to an addition problem.

• sum

• difference

• product

• quotient

Answer explanation

The answer to an addition problem is called the 'sum'. The other options refer to different mathematical operations: 'difference' for subtraction, 'product' for multiplication, and 'quotient' for division.

________ is the answer to a sutraction problem.

• sum

• difference

• product

• quotient

Answer explanation

The answer to a subtraction problem is called the 'difference'. The other options refer to different mathematical operations: 'sum' for addition, 'product' for multiplication, and 'quotient' for division.

If there is a decimal in the divisor, what must be done first?

• The divisor must be made a whole

• The decimal gets moved into the dividend

• Divide like normal

• Erase the decimal

Answer explanation

When the divisor has a decimal, the first step is to make it a whole number. This is done by moving the decimal point to the right, which also requires moving the decimal in the dividend the same number of places.

What is the first step when multiplying decimals?

• Line up the numbers

• Line up the decimals

• Multiply like normal

• Move the decimal

Answer explanation

The first step when multiplying decimals is to line up the numbers. This ensures that the digits are correctly aligned for multiplication, making it easier to calculate the product accurately.

Once the numbers are lined up in a multiplication problem, how do I know where my decimal is placed in my answer?

• Bring the decimal straight down

• There is no decimal

• Count how many numbers are behind all decimals in the problem

• Move the decimal 2 spaces from the front

Answer explanation

To determine where to place the decimal in your answer, count the total number of digits behind the decimals in all the numbers being multiplied. This total will indicate where to position the decimal in the final product.

When you move the decimal in the divisor, what happens in the dividend?

• You raise the decimal straight up

• Nothing

• You put a zero in the front

• The decimal moves the same amount in the dividend that it moved in the divisor.

Answer explanation

When you move the decimal in the divisor, you must also move it the same number of places in the dividend to maintain the value of the division. This ensures the quotient remains accurate.