Addition Worksheets

Twelve problems per page in big, clear print: no clutter, no distractions. Start with sums to 10 and work all the way up to column addition with carrying.

Ages 5-8

Updated July 2026

Addition to 10 · #1

12 vertical sums within 10 built from two small numbers, a gentle warm-up, with answer boxes.

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Addition to 10 · #2

12 vertical sums within 10 mixing every kind of number pair, with answer boxes.

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Addition to 10 · #3

12 vertical sums within 10 that each include a larger number, with answer boxes.

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Addition to 20 · #1

12 vertical sums within 20 built from two small numbers, a gentle warm-up, with answer boxes.

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Addition to 20 · #2

12 vertical sums within 20 mixing every kind of number pair, with answer boxes.

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Addition to 20 · #3

12 vertical sums within 20 that each include a larger number, with answer boxes.

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Addition to 5, easy numbers

12 vertical sums within 5 built from two small numbers, with answer boxes.

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Addition to 5, mixed numbers

12 vertical sums within 5 mixing every kind of number pair, with answer boxes.

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Addition to 5, harder numbers

12 vertical sums within 5 that each include a larger number, with answer boxes.

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Addition to 50, easy numbers

12 vertical sums within 50 built from two small numbers, with answer boxes.

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Addition to 50, mixed numbers

12 vertical sums within 50 mixing every kind of number pair, with answer boxes.

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Addition to 50, harder numbers

12 vertical sums within 50 that each include a larger number, with answer boxes.

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Addition to 100, easy numbers

12 vertical sums within 100 built from two small numbers, with answer boxes.

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Addition to 100, mixed numbers

12 vertical sums within 100 mixing every kind of number pair, with answer boxes.

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Addition to 100, harder numbers

12 vertical sums within 100 that each include a larger number, with answer boxes.

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Horizontal addition to 5, easy numbers

12 horizontal sums within 5 built from two small numbers, written left to right.

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Horizontal addition to 5, mixed numbers

12 horizontal sums within 5 mixing every kind of number pair, written left to right.

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Horizontal addition to 5, harder numbers

12 horizontal sums within 5 that each include a larger number, written left to right.

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Horizontal addition to 10, easy numbers

12 horizontal sums within 10 built from two small numbers, written left to right.

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Horizontal addition to 10, mixed numbers

12 horizontal sums within 10 mixing every kind of number pair, written left to right.

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Horizontal addition to 10, harder numbers

12 horizontal sums within 10 that each include a larger number, written left to right.

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Horizontal addition to 20, easy numbers

12 horizontal sums within 20 built from two small numbers, written left to right.

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Horizontal addition to 20, mixed numbers

12 horizontal sums within 20 mixing every kind of number pair, written left to right.

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Horizontal addition to 20, harder numbers

12 horizontal sums within 20 that each include a larger number, written left to right.

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Horizontal addition to 100, easy numbers

12 horizontal sums within 100 built from two small numbers, written left to right.

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Horizontal addition to 100, mixed numbers

12 horizontal sums within 100 mixing every kind of number pair, written left to right.

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Horizontal addition to 100, harder numbers

12 horizontal sums within 100 that each include a larger number, written left to right.

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Missing number addition to 5, easy numbers

12 missing-addend sums within 5 built from two small numbers: find the number that completes each.

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Missing number addition to 5, mixed numbers

12 missing-addend sums within 5 mixing every kind of number pair: find the number that completes each.

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Missing number addition to 5, harder numbers

12 missing-addend sums within 5 that each include a larger number: find the number that completes each.

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Missing number addition to 10, easy numbers

12 missing-addend sums within 10 built from two small numbers: find the number that completes each.

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Missing number addition to 10, mixed numbers

12 missing-addend sums within 10 mixing every kind of number pair: find the number that completes each.

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Missing number addition to 10, harder numbers

12 missing-addend sums within 10 that each include a larger number: find the number that completes each.

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Missing number addition to 20, easy numbers

12 missing-addend sums within 20 built from two small numbers: find the number that completes each.

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Missing number addition to 20, mixed numbers

12 missing-addend sums within 20 mixing every kind of number pair: find the number that completes each.

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Missing number addition to 20, harder numbers

12 missing-addend sums within 20 that each include a larger number: find the number that completes each.

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Missing number addition to 100, easy numbers

12 missing-addend sums within 100 built from two small numbers: find the number that completes each.

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Missing number addition to 100, mixed numbers

12 missing-addend sums within 100 mixing every kind of number pair: find the number that completes each.

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Missing number addition to 100, harder numbers

12 missing-addend sums within 100 that each include a larger number: find the number that completes each.

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Addition word problems to 10

Six one-step stories where nothing passes ten, so the hard part is turning the sentence into a sum, not the adding.

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Addition word problems to 20

The same story shapes carried into the teens, where a child can no longer count the whole answer on their fingers.

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Addition word problems to 50

Two-digit stories that still fit under fifty, the halfway house between mental addition and the written column.

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Addition word problems to 100

Numbers big enough that the answer has to be worked out on paper, which is exactly when word problems start being useful.

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Fact families to 10

Six triangles holding three numbers each, the first proof that one addition already contains its own subtraction.

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Fact families to 20

Triangles built from teen totals, so the four related facts stop being findable by counting up from one.

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Fact families to 50

Two-digit triangles for children who know the idea and now need it with numbers they cannot picture as dots.

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Column addition, no carrying · #1

Nine two-digit sums where no column ever passes nine, so the algorithm can be learned before carrying is added to it.

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Column addition, no carrying · #2

A second full page of the same guaranteed no-carry problems, for the week when the first one nearly worked.

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Column addition with carrying · #1

Every single problem here carries out of the ones, by construction, so nobody finishes the page without meeting the idea.

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Column addition with carrying · #2

Nine more guaranteed carries, drawn from a different set of numbers so the answers cannot be remembered from sheet one.

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3-digit addition, no carrying · #1

Hundreds, tens and ones stacked up with nothing to carry, so the only new thing on the page is the extra column.

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3-digit addition, no carrying · #2

A repeat page at the same guaranteed difficulty, useful when three columns are still one column too many.

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3-digit addition with carrying · #1

The full algorithm: every problem carries out of the ones and again out of the tens, which is where most of the slips happen.

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3-digit addition with carrying · #2

A second page of double carries, because this is the step that needs repeating rather than explaining again.

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Adding three numbers · #1

Three numbers stacked instead of two, which quietly teaches that a column can hold more than one carry.

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Adding three numbers · #2

Nine more three-addend columns, handy for the child who adds the first pair correctly and then forgets the third number.

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Adding three 3-digit numbers

Three hundreds-sized numbers in one column, the longest addition on this page and a genuine test of neat handwriting.

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Doubles and near doubles · #1

Each row puts 6 plus 6 next to 6 plus 7 on purpose, so the second answer is one step from the first rather than a fresh calculation.

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Doubles and near doubles · #2

The same strategy carried into the teens, where doubling 14 is a mental habit worth having before column addition arrives.

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Number bonds to 10

Six part and whole diagrams for the number ten, the set of pairs worth knowing by heart before anything else.

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Number bonds to 20

Twenty split six different ways, the bridge between knowing the pairs to ten and using them past the tens boundary.

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Number bonds to 100

One hundred broken into two parts, the mental step behind giving change and behind every rounding shortcut later on.

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Addition on a number line to 20

Four number lines with every tick marked, so the sum is something you walk along rather than something you recall.

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Addition on a number line to 50

The ticks now stand for five, so the jumps have to be counted in groups instead of one at a time.

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Addition on a number line to 100

A hundred-long line where the efficient route is one big jump of tens and a small one after it.

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Add across and down to 10

Four little grids where the corner total has to come out the same whichever way you work it, which is a built-in answer key.

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Add across and down to 20

The same self-checking grids with teen numbers, where a wrong corner sends you back to find which row went astray.

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Balancing addition to 20

Both sides of the equals sign carry a sum, which is the page that stops a child reading the equals sign as an instruction.

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Balancing addition to 100

Two-digit balances, where guessing stops working and the total has to actually be found first.

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True or false: sums to 20

Ten number sentences, five of them wrong on purpose: marking somebody else's work is a different skill from doing your own.

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True or false: sums to 100

Two-digit statements to check, where a wrong answer is usually only one carry away from a right one.

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Addition speed drill to 10

Forty facts inside ten on one page, small print and no answer boxes: this one is about recall speed, not about method.

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Addition speed drill to 20

The classic forty-fact minute page for sums within twenty, the standard measure of whether the facts are automatic yet.

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Addition speed drill to 50

Forty two-digit sums under fifty, fast enough to be mental but big enough that guessing shows up immediately.

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Addition speed drill to 100

The hardest drill on the page: forty sums reaching a hundred, best given once the written column is already reliable.

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Add 10 in your head

Sixteen numbers run through one rule, so the pattern in the tens digit becomes obvious before anybody explains it.

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Add 20 in your head

Adding two tens at once, the natural follow-up once adding a single ten no longer needs any thought.

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Add 100 in your head

Three-digit numbers with only the hundreds digit changing, which is place value doing all the work for you.

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Add left to right to 30

Ten chains of three numbers, solved one step at a time, which is where children first have to hold a running total in their head.

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Add left to right to 100

Longer chains with two-digit numbers, where losing the running total costs the whole answer and not just one digit.

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