Mastering Adding and Subtracting Decimals

What is another term for addition?

• Compare

• Decrease

• Total

• Separate

Which operation is considered the opposite of addition?

• Multiplication

• Subtraction

• Comparison

• Division

When adding or subtracting decimals, where should you start?

• Rightmost digit

• Middle digit

• Leftmost digit

• Any digit

What property allows you to change the order of addends in addition?

• Associative Property

• Distributive Property

• Commutative Property

• Identity Property

In the example of adding 876 thousandths, 5 and 1 tenth, 63, and 15 and 47 hundredths, what is the correct sum?

• 84.446

• 84.446000

• 84.4460

• 84.44600

What is the purpose of aligning digits according to their place value when adding decimals?

• To make the numbers look neat

• To ensure accurate addition

• To follow a mathematical tradition

• To make the process faster

When arranging addends by value, which number should you start with?

• The smallest value

• The middle value

• Any value

• The largest value

What should you do if the subtrahend has more decimal digits than the minuend?

• Round the subtrahend

• Ignore the extra digits

• Add zeros to the minuend

• Subtract as is

In the subtraction example, what is the result of 6.095 - 1.84?

• 4.2550

• 4.255000

• 4.255

• 4.25500

What is a common mistake when subtracting decimals?

• Starting from the leftmost digit

• Ignoring the decimal point

• Aligning the digits incorrectly

• Adding instead of subtracting