Mod 4 Lesson 2 Mental +/-

Front

What is 745 - 300?

Back

445

Front

What is 440 + 240?

Back

680

Front

What is 128 + 100?

Back

228

Front

What is 30 - 30?

Back

0

Front

If 649 + 300 + ? = 979, what is ?

Back

30

Front

What does addition mean?

Back

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

Front

What does subtraction mean?

Back

Subtraction is the process of taking one number away from another.

Front

What is the sum of two numbers?

Back

The sum is the result of adding two or more numbers together.

Front

What is the difference between two numbers?

Back

The difference is the result of subtracting one number from another.

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals, used to represent numbers visually.