Decimal Operations Quiz

What is the first step when adding or subtracting decimals?

• Add additional zeroes at the end

• Write the problem vertically, lining up the decimal points

• Add/subtract as if the numbers are whole numbers

• Bring the decimal point straight down

When multiplying decimals, what should you do after ignoring the decimals and multiplying as if the numbers are whole numbers?

• Write the problem vertically, lining up the decimal points

• Add additional zeroes at the end

• Count the total number of decimal places in the factors and put a decimal point in the product

• Bring the decimal point straight down

What is the correct order of operations?

• Exponents, Grouping Symbols, Multiplication & Division, Addition & Subtraction

• Grouping Symbols, Exponents, Addition & Subtraction, Multiplication & Division

• Grouping Symbols, Exponents, Multiplication & Division, Addition & Subtraction

• Multiplication & Division, Grouping Symbols, Exponents, Addition & Subtraction

What should you do to the divisor when dividing decimals?

• Write the problem vertically, lining up the decimal points

• Move the decimal point in the divisor after the number to turn it into a whole number

• Add additional zeroes at the end

• Count the total number of decimal places in the factors

In the order of operations, which step comes immediately after handling exponents?

• Grouping Symbols

• Multiplication & Division

• Addition & Subtraction

• None of the above

When adding or subtracting decimals, what should you do if the numbers have different numbers of decimal places?

• Write the problem vertically, lining up the decimal points

• Add additional zeroes at the end to make the numbers have the same number of decimal places

• Add/subtract as if the numbers are whole numbers

• Bring the decimal point straight down

What is the final step when dividing decimals?

• Write the problem vertically, lining up the decimal points

• Move the decimal point in the divisor after the number to turn it into a whole number

• Divide as if the numbers are both whole numbers

• Annex zeros in the dividend as needed until there is no remainder

When multiplying decimals, do the decimal points need to be lined up?

• Yes

• No

• Sometimes

• Only if the numbers are whole numbers

What should you do after writing the dividend under the long division symbol and the divisor to the left of it when dividing decimals?

• Write the problem vertically, lining up the decimal points

• Move the decimal point in the divisor after the number to turn it into a whole number

• Add additional zeroes at the end

• Count the total number of decimal places in the factors

What is the result of 5.983 + 2.99?

• 8.973

• 8.973

• 7.973

• 9.973