Grade 6 Expressions & Equations Missing Number
Grade 6 expressions and equations missing number sheet: 24 problems on one-step equations, missing coefficients.
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Three different problem sets — same skill, same layout, fresh numbers.
Preview — Set A
Find the number that belongs in each blank.
- 1.Solve: 9x = 171
- 2.___x + 10 = 2 when x = -4
- 3.Solve: 2x = 30
- 4.3x + ___ = 10 when x = 3
- 5.Solve: x + 16 = 27
- 6.-6x + ___ = -3 when x = 2
- 7.Solve: x ÷ 7 = 15
- 8.-8x + ___ = -2 when x = -1
- 9.Solve: x - 10 = -5
- 10.___x + (-8) = 27 when x = -5
- 11.Solve: x + 20 = 38
- 12.-2x + ___ = -7 when x = -2
- 13.Solve: x + 15 = 20
- 14.___x + (-3) = -6 when x = -1
- 15.Solve: x ÷ 6 = 19
- 16.-4x + ___ = 16 when x = -6
- 17.Solve: x ÷ 2 = 5
- 18.-4x + ___ = -3 when x = 1
- 19.Solve: 5x = 80
- 20.___x + 7 = 6 when x = -1
- 21.Solve: x ÷ 9 = 15
- 22.___x + (-4) = 1 when x = -1
- 23.Solve: x + 1 = 12
- 24.5x + ___ = -48 when x = -9
What this worksheet covers
Set A of this grade 6 missing number sheet holds 24 expressions and equations problems on one printable page, with the answer key on the page behind it. Within that, twelve of the 24 problems involve a negative quantity and the blank moves between positions from problem to problem, so no single procedure clears the page. Two problems from the middle of the page — "Solve: x - 10 = -5" and "Solve: x ÷ 2 = 5" — show the range. Common Core 6.EE.7 is the slot this page fills.
Skills practised
Grade 6 expressions and equations means evaluating expressions, whole-number exponents, one-step equations and combining like terms. The skills on the page: one-step equations and missing coefficients. Concretely, the sheet tests whether a student can track direction as well as magnitude and reason backwards from a result to a missing part. Twenty different answers appear across the 24 problems, so a student cannot copy one result down the page.
About the missing number format
The 24 problems here move the unknown around, so a student solves for a missing part as often as for a result; problem 9, "Solve: x - 10 = -5" is one of them. A missing coefficient or constant asks the student to reason about the structure of the expression, which is the algebraic habit itself.
Set A, Set B and Set C
The three sets come from the same generator with three different seeds: same skill, same layout, fresh numbers, and an answer key computed with the problems. Where Set A's problem 13 is "Solve: x + 15 = 20", Set B's is "Solve: x - 1 = 16".
How to use this worksheet
Expect twenty minutes or so of real attention for 24 problems. At grade 6, expressions and equations rewards care over speed — a rushed missing number gets the arithmetic right and the signs or units wrong. Mark the 24 problems the same day using the key — an error caught immediately is a correction, and one caught next week is a habit.
One mistake to watch for
Like terms are combined with unlike ones: 3x + 2 becomes 5x. Problem 17 on this grade 6 missing number page, "Solve: x ÷ 2 = 5", is where to look for it.
The variable is being treated as a label that can be dropped.
Underline x-terms and circle constants before combining, and only combine within a mark.
Other grade 6 expressions and equations formats
The same skill in the other formats available at this grade.
- Drill — 6.EE.1 — Writing & Evaluating Expressions with Exponents, 22 problems
- Timed Drill — Grade 6 Expressions & Equations Timed Drill, 60 problems
- Mixed Review — Grade 6 Expressions & Equations Mixed Review, 30 problems
- Word Problems — 6.EE.7 — Writing & Solving Equations: Real-World Practice, 22 problems
A step either side
The same format one grade down and one grade up — the easier sheet is often the faster fix when this one is not landing.
- Grade 7 Expressions & Equations Missing Number — grade 7, 24 problems
Missing Number sheets in other grade 6 topics
Free to download, print and photocopy for a whole class: three missing number sheets of grade 6 expressions and equations, 24 problems each, keys included.