Adding and subtracting decimals

What is the change received from $100 after spending $61.18?

• $25.00

• $38.82

• $40.00

• $30.50

How do you add decimals?

• Align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

• Add the whole numbers first and then add the decimal parts separately.

• Convert the decimals to fractions and add them together.

• Ignore the decimal points and add the numbers as if they were whole numbers.

What is the sum of 10.9 and 8.6?

• 18.5

• 19.0

• 19.5

• 20.1

What is the sum of 0.75 and 0.25?

• 0.50

• 1.00

• 1.25

• 0.75

If Jerry bought 6.95 lbs of jelly beans and 1.75 lbs were cherry flavor, how do you find the lime flavor?

• Subtract the cherry flavor from the total: 6.95 - 1.75 = 5.2 lbs.

• Add the cherry flavor to the total: 6.95 + 1.75 = 8.7 lbs.

• Multiply the cherry flavor by the total: 6.95 * 1.75 = 12.1625 lbs.

• Divide the total by the cherry flavor: 6.95 / 1.75 = 3.9714 lbs.

What is a decimal?

• A number that includes a decimal point, separating the whole number part from the fractional part.

• A whole number without any fractions or decimals.

• A type of fraction that cannot be expressed as a whole number.

• A number that is always less than one.

What is the value of 0.5 + 0.25?

• 0.50

• 0.75

• 1.00

• 0.80

How do you subtract decimals?

• Align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

• Subtract the whole numbers first and then subtract the decimal parts separately.

• Convert the decimals to fractions and then subtract them.

• Ignore the decimal points and subtract the numbers as if they were whole numbers.

What is the total of 12.4, 8.6, and 10.9?

• 30.5

• 31.9

• 29.8

• 32.1

How do you convert a fraction to a decimal?

• Multiply the numerator by the denominator.

• Add the numerator and denominator together.

• Divide the numerator by the denominator.

• Subtract the denominator from the numerator.