Addition and subtraction

First, we will learn how addition and subtraction relate. Next, we will add and subtract numbers less than or equal to 20 and solve addition and subtraction word problems. Finally, we will begin adding 2-digit numbers.
15 exercises available

Learn how to addition and subtraction are related. Numbers used are 10 or less.

Learn to subtract. Numbers used are 20 or less.

Learn the meaning of '=', the equal sign.

Learn how to solve problems like "___ + 7 = 18" where you don't know one of the values in an addition or subtraction equation.