grade 4 mathematics

Addition is the process of finding the total amount of two or more numbers. The result of adding or more numbers is call sum

Addition word problems Addition word problems arise in any situations where there is a gain or an increase of something as a result of combining one or more numbers. Think of addition as combining parts to form a whole. Consider the following situations.

Subtraction. Subtraction is the process of taking away a number from another. It is a primary arithmetic operation that is denoted by a subtraction symbol (-) and is the method of calculating the difference between two numbers. 1.

Subtraction Word Problems. Words like ‘difference’, ‘less’, ‘take away’, ‘loss’ usually means that subtraction is involved. For subtraction, take note which number has to be subtracted from which number. Subtracting in the wrong order will give you the wrong answer.