Minuend

Definitionnoun

What is a minuend in math?

The minuend is the number you subtract from: the first number in a subtraction. In 17 − 6 = 11, the minuend is 17, the subtrahend is 6 and the difference is 11. The minuend is the whole you start with, so it equals the difference plus the subtrahend.

In Spanish
minuendo
Also called
first number in a subtraction, number you subtract from
How to say it
MIN-yoo-end
Grade level
K-5
Grade 1Grade 2Grade 3CCSS 1.OA.B.4CCSS 2.NBT.B.5TABEASVAB

Minuend in a picture

The minuend is the starting whole in a subtractionThe subtraction 17 minus 6 equals 11 with its parts labeled. A number line from 0 to 20 shows a start at 17, a jump back of 6, and a landing at 11. A bar model shows the minuend 17 as the whole bar, split into the subtrahend 6 and the difference 11.17 − 6 = 11minuendsubtrahenddifference02468101214161820take away 61711start hereland hereminuend 17 (the whole)subtrahend 6difference 11Check: 11 + 6 = 17, the minuend
The minuend is where you start. Taking away the subtrahend leaves the difference, so the minuend is always the difference plus the subtrahend: 11 + 6 = 17.

Formal definition and notation

In a subtraction a − b = c, the number a is the minuend, b is the subtrahend and c is the difference. Subtraction is defined through addition: a − b is the unique number c with c + b = a. So the minuend always satisfies a = c + b. With whole numbers, c is a whole number only when a ≥ b; with integers any minuend works.

Symbol Read it as Meaning
a − b = c a minus b equals c a is the minuend, b the subtrahend, c the difference

Key facts

  • The name comes from the Latin for “to be made smaller”: the minuend is the number that gets reduced.
  • Order matters in subtraction: 12 − 5 = 7 but 5 − 12 = −7. Swapping the minuend and subtrahend changes the answer.
  • If the minuend equals the subtrahend, the difference is 0: 9 − 9 = 0.
  • If the minuend is smaller than the subtrahend, the difference is negative: 4 − 10 = −6.
  • In “subtract 8 from 30”, the minuend is 30, even though 8 is said first.

Minuend from the other parts

Minuend from the other parts
minuend = difference + subtrahend
difference
the answer to the subtraction
subtrahend
the amount taken away

For □ − 25 = 38: the minuend is 38 + 25 = 63. Check: 63 − 25 = 38.

Minuend examples, step by step

Example 1: Spot the minuend

Warm-up

Name the minuend in 64 − 29 = 35.

  1. The minuend is the number before the minus sign: 64.
  2. Check it equals difference plus subtrahend: 35 + 29 = 64.

Answer: The minuend is 64.

Example 2: Find a missing minuend

Core

Find the missing number: □ − 47 = 85.

  1. The box is the minuend. The subtrahend is 47 and the difference is 85.
  2. Minuend = difference + subtrahend = 85 + 47.
  3. 85 + 47 = 132.
  4. Check: 132 − 47 = 85.

Answer: The missing minuend is 132.

Example 3: Words in reverse order

Test-style

A tank held some water. After 18 liters leaked out, 56 liters were left. How many liters were in the tank at first? Write the subtraction and name its minuend.

  1. The starting amount is unknown, so it is the minuend: □ − 18 = 56.
  2. Minuend = 56 + 18 = 74.
  3. Check: 74 − 18 = 56.

Answer: The tank held 74 liters at first; the subtraction is 74 − 18 = 56, with minuend 74.

Common mistakes

✗ Mistake“Subtract 8 from 30” means 8 − 30.
✓ InsteadIt means 30 − 8 = 22. The number after “from” is the minuend.

“From” names the starting amount. The phrase lists the subtrahend first, so the written order flips.

✗ MistakeFor □ − 15 = 40, subtract: 40 − 15 = 25.
✓ InsteadThe missing number is the minuend, so add: 40 + 15 = 55. Check: 55 − 15 = 40.

A missing minuend is the whole, and you rebuild a whole by adding its parts.

✗ MistakeIn 52 − 38, take the smaller digit from the larger in each column: 8 − 2 = 6, 5 − 3 = 2, giving 26.
✓ InsteadRegroup from the minuend: 52 becomes 4 tens and 12 ones, 12 − 8 = 4, 4 − 3 = 1, so 52 − 38 = 14.

Each column must subtract the subtrahend digit from the minuend digit. When the minuend digit is smaller, regroup.

Not to be confused with

Minuendvs.Subtrahend

The minuend is the number you start with; the subtrahend is the number you take away. In 20 − 7, 20 is the minuend and 7 is the subtrahend.

Minuendvs.Difference

The difference is the result. In 20 − 7 = 13, 13 is the difference, not the minuend.

Quick check: 3 questions

Question 1 of 3

In 91 − 37 = 54, what is the minuend?

Show answer and explanation

Answer: C. The minuend is the number you subtract from, 91. 37 is the subtrahend, 54 is the difference, and 128 adds the two numbers instead.

Question 2 of 3

What number completes □ − 26 = 49?

Show answer and explanation

Answer: B. The missing number is the minuend: 49 + 26 = 75, and 75 − 26 = 49. 23 subtracts instead of adding; 65 and 85 are addition slips.

Question 3 of 3

Which expression has a minuend of 40?

Show answer and explanation

Answer: C. “The difference of 40 and 12” means 40 − 12, so 40 is the minuend. “Subtract 40 from 90” and “40 less than 75” both take 40 away, so 40 is the subtrahend there; “12 minus 40” starts at 12.

Minuend: frequently asked questions

What are the three parts of a subtraction problem?

A subtraction has a minuend, a subtrahend and a difference. In 15 − 4 = 11, the minuend 15 is the starting amount, the subtrahend 4 is the amount taken away, and the difference 11 is what remains. A helpful memory aid: the minuend comes first and gets made smaller, and the subtrahend is subtracted from it.

Can the minuend be smaller than the subtrahend?

Yes, once you use negative numbers. 6 − 10 = −4, so the difference is negative. In early grades, problems keep the minuend at least as big as the subtrahend so the answer stays a whole number, but in grade 7 and beyond any two numbers can be subtracted in either order.

Practice and tools

Sources

  1. Common Core State Standards, Grade 1 Operations and Algebraic Thinking (1.OA.B.4)
  2. Common Core State Standards, Grade 2 Number and Operations in Base Ten (2.NBT.B.5)
  3. OpenStax, Prealgebra 2e, 1.3 Subtract Whole Numbers

Updated November 2026·Reviewed by the Effortless Math team·Standards: CCSS 1.OA.B.4, CCSS 2.NBT.B.5

Cite this entry

Effortless Math Team. “Minuend.” Effortless Math Dictionary. Updated November 2026. https://www.effortlessmath.com/math-dictionary/minuend/

Flashcard

TermMinuendthe 17 in 17 − 6 = 11
DefinitionThe number you subtract from, written first. In 17 − 6 = 11, the minuend is 17. It equals difference plus subtrahend: 11 + 6.
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