easy
The sum of 4 and 3 is 7.
What does Sum mean?
the total found by adding numbers or amounts.
Dictionary definition
The total found by adding numbers or quantities; as a verb, sum means to add or total, and sum can also mean an amount or brief summary.
Example sentences
Sum in a sentence
medium
Add the three measurements to find their sum.
hard
The expression's terms can be rearranged without changing their sum.
Writing practice
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Quick practice
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Practice the meaning of Sum
Answer three quick questions about its meaning and related words.
Question 1 of 3
Practice 1
What is a sum in mathematics?
The addends are combined to produce a sum.
Practice 2
Which equation shows a sum of 9?
Although all equations equal 9, only 4 + 5 shows 9 as a sum produced by addition.
Practice 3
Which statement is accurate?
Addition is commutative, so addend order does not change the sum.
Practice complete
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Sum
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WordSum.
Partnoun, verb.
MeaningSum means the total found by adding numbers or amounts.
ExampleExample: The sum of 4 and 3 is 7.
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Synonyms
Words like Sum
Antonym review
Does Sum have an opposite?
Sum names a total, amount, summary, or adding action and has no direct antonym. Difference is the result of subtraction, not the opposite of a sum.
Synonym practice
Want to practice sum synonyms in context? Try a Synonym Search question like "The total was written at the bottom," then compare close word choices. Practice sum synonyms.
Word family
Sum word family
Base word
sum
noun
sums
More than one total; it can also mean adds amounts.
verb
summed
Added or totaled in the past.
noun
summation
The process or result of adding a sequence of terms.
Related words
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Student support
Understand Sum
Hint for students
Sum names a result specifically when addition produced it.
Common mix-up
Sum does not mean the answer to every calculation. It specifically names a total produced by addition.
Try it in class or at home
Students sort equations by whether the answer is a sum, difference, product, or quotient, then write two different addition expressions with the same sum.
Teacher prompt
How can the same number be a sum in one equation and a product or difference in another? Use operation language precisely.
Word Wheels
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Word Wheel
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Word Wheel · Grades 1-3
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Learning activities
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