Addition and Subtraction

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

Front

What is the sum of 725 + 248?

Back

973

Front

How do you estimate the difference of 412 - 257 by rounding to the nearest hundreds?

Back

100

Front

What is the estimated difference for 786 - 245 when rounding to the nearest tens?

Back

540

Front

If Khaled buys a bike for AED 1,423 and a helmet for AED 48, how much did he spend in total?

Back

AED 1,471

Front

What is the first step when adding and subtracting?

Back

Go to the ones place.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest place value (like tens or hundreds) to make it easier to work with.

Front

What is a place value?

Back

Place value is the value of a digit based on its position in a number, such as ones, tens, hundreds, etc.

Front

What is the difference between a sum and a difference?

Back

A sum is the result of addition, while a difference is the result of subtraction.