Adding/Subtracting Whole Numbers/Decimals

Match the explanation that matches the following word;

Variable

• Symbol or name that represents a value
• A type of data structure.
• A mathematical operation.
• A letter of the alphabet.

Match the explanation that matches the following word;

Compatible numbers

• Numbers that are easy to work with mentally
• Numbers that are only used in advanced mathematics.
• Numbers that are not related to each other.
• Numbers that are difficult to work with mentally.

Match the explanation that matches the following word;

Standard Notation

• Conventional or widely accepted way of representing or expressing something
• An outdated or obsolete way of representing or expressing something.
• A non-standard or unconventional way of representing or expressing something.
• A unique way of representing or expressing something.

Match the explanation that matches the following word;

Minuend

• Number from which another number is subtracted
• Number that is added to another number.
• Number that is multiplied by another number.
• Number that is divided by another number.

Match the explanation that matches the following word;

Decimal System

• Numerical system with base 2

• Numerical system with base 10
• Numerical system with base 8.
• Numerical system with base 16.

Match the explanation that matches the following word;

Subtrahend

• Number being added.
• Number being multiplied.
• Number being subtracted
• Number being divided.

Match the explanation that matches the following word;

Expanded Notation

• Writing numbers in a vertical format.
• Writing numbers in cursive.
• Writing numbers in lowercase letters.
• Writing numbers as the sum of their place values

634 ___ 436

• =

• >

• <

Answer explanation

The question is asking to compare the two numbers 634 and 436. In this case, the number 634 is greater than 436. Therefore, the correct choice is '>'.

835.237 ____ 835.2370

• is greater than

• is equal to

• is less than

Answer explanation

The question is comparing two decimal numbers: 835.237 and 835.2370. In decimal numbers, zeroes at the end do not impact the value of the number. Therefore, 835.237 is equal to 835.2370. Hence, the correct choice from the options is 'is equal to'.

$1.08 ____ $1.30

• <

• >

• =

Answer explanation

The question is comparing two amounts: $1.08 and $1.30. The correct answer is '<' which means 'less than'. Therefore, $1.08 is less than $1.30, which is why '<' is the correct answer.