Grade 4 Q2 Review

Front

What is estimation in mathematics?

Back

Estimation is a method used to find an approximate value that is close to the actual value, often used to make calculations easier.

Front

How do you estimate the product of two numbers?

Back

To estimate the product, round each number to a nearby value that is easier to multiply, then multiply the rounded numbers.

Front

What is a round trip?

Back

A round trip is a journey to a destination and back again.

Front

How do you calculate total distance for multiple trips?

Back

Multiply the distance of one trip by the number of trips taken.

Front

What is division?

Back

Division is a mathematical operation where a number is divided into equal parts.

Front

How do you find out how many items can be fed with a certain amount of food?

Back

Divide the total amount of food by the amount of food each item consumes.

Front

What is a mathematical equation?

Back

A mathematical equation is a statement that two expressions are equal, often containing variables.

Front

How do you solve for a variable in an equation?

Back

To solve for a variable, isolate the variable on one side of the equation using inverse operations.

Front

What does rounding mean?

Back

Rounding is the process of adjusting a number to the nearest specified value, such as the nearest ten or hundred.

Front

How do you round a number to the nearest hundred?

Back

Look at the tens digit: if it is 5 or more, round up; if it is less than 5, round down.