One-step equations – add and subtract
One-step equation — add/subtract
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Solve the equation and fill in the value of the variable.
x + 5 = 12
x =
What does the generator do?
The generator picks an equation of the form x + a = b, x − a = b or a − x = b with an integer solution.
How to solve
If a number is added to the variable, subtract it from both sides. If a number is subtracted from the variable, add it to both sides. The variable is left alone.
Other exercise generators:
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- Column subtraction — 4-digit numbers
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- Compare two line graphs
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- Comparing Numbers
- Comparing within 100
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- Compare numbers up to 10,000
- Comparing within 20
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- Comparing Powers
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- Add and subtract decimals
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- Divide a decimal by a whole number
- Decimals and fractions
- Multiply and divide decimals by 10, 100, 1000
- Multiply a decimal by a whole number
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- Digit at a given place
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- Distance between two points on a gridline
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- Evaluate an expression
- Evaluating expressions
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- Expanded form (up to 10,000)
- Expanded form (up to a million)
- Combining Like Terms
- Equivalent Expressions
- Evaluating Expressions
- Expanding Parentheses
- Factoring Out
- Algebraic Fractions
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- Cube of a Binomial
- Multiplying Binomials
- Substitution into Expressions
- All factors of a number
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- Find the Bigger or Smaller Number
- Fraction, decimal and percent — the same thing in three forms
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- Fraction of a set
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- Add fractions with different denominators
- Add fractions (same denominator)
- Compare fractions
- Equivalent fractions
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- Fraction of a number
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- Inequalities - Special Cases
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- Inequalities with Parentheses
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- Imperial units – smaller to larger
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- Arithmetic with mixed units
- Convert two units to one
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- Length units — cm and m
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- Unknown on Both Sides with Fractions
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- Equations with Fractions - Unknown in Numerator
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- Median
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- Mixed and improper fractions
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- Count the money
- Count money
- Euros and cents — decimal notation
- Making change
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- Money word problems
- Money word problems
- Multiples of a number
- Multiplication and Division Exercises
- Times tables 2, 5, 10
- Multiplication as an array
- Multiplication as an array — review
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- Times tables — quick drill
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- Fill the missing times-table cell
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- Multiplication word problems
- Times-tables word problems
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- Multiply and divide by 10, 100, 1000
- Column multiplication up to 10,000
- Multi-digit × 1-digit multiplication
- Long multiplication with multi-digit numbers
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- Order Numbers up to 10,000
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- Order of operations — no brackets
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- Percentage word problem
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- Powers Calculation
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- exercises.prima-01-length-units.title
- exercises.prima-02-painted-cubes.title
- exercises.prima-03-fraction-shaded.title
- exercises.prima-04-midpoint.title
- exercises.prima-05-bar-chart-read.title
- exercises.prima-06-building-views.title
- exercises.prima-07-circles-in-circle.title
- exercises.prima-08-construction.title
- exercises.prima-09-shopping-word.title
- exercises.prima-10-wire-shape.title
- exercises.prima-11-rounding-pair.title
- exercises.prima-12-dice-combinatorics.title
- exercises.prima-13-remainder-error.title
- exercises.prima-14-strike-out-digits.title
- exercises.prima-15-tallest-building.title
- exercises.prima-16-hidden-digits.title
- exercises.prima-17-number-line-mark.title
- exercises.prima-18-tickets.title
- exercises.prima-19-circles-row.title
- exercises.prima-20-multiply-objects.title
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- Word problems
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