Skip to content
Single packs: spend $18, save 10% · spend $26, save 20% — taken off automatically at checkout Packs: $18 → 10% off · $26 → 20% off
Instant download — nothing ships Print-ready PDF + editable PowerPoint US Letter · ink-light by design Print unlimited copies for your own class Free sampler — no card needed
Missing Addends to 10 Assessments | K–1st Grade (6 Pages) — cover
Missing Addends to 10 assessments, 6 printable pages1 / 6

Assessments · K–1st Grade · 6 pages

Missing Addends to 10 Assessments | K–1st Grade (6 Pages)

See every page before you buy
  • Zero prep needed
  • Instant download
  • Yours forever
  • Follows a sequence
  • Print and go
  • Broken file? We fix or refund
$5.00$3.00Save $2.00 today (40% OFF)
Mix and match single packs: spend $18, save 10% · spend $26, save 20%. Taken off automatically at checkout.

6 pages — about 50¢ a page.

Secure checkout · files by email straight away

Pay securely with American Express Apple Pay Diners Club Discover Google Pay Mastercard PayPal Shop Pay Visa
Pairs well together
Your selection
Bundle total$0.00

Add all 3 together: 15% off every item here (code TOGETHER15 applied for you).

Missing Addends to 10: short check-ups with a score box and answer key. Answer key included.

What’s inside this download
  • 6 printable pages of Missing Addends to 10 assessments
  • 45 problems for Kindergarten to 1st grade
  • Short check-ups with a score box and answer key
  • Answer key included
  • One print-ready PDF, US Letter
Why choose this over a free worksheet
  • Missing addends within 10
  • Count-up and fact-family thinking
  • Keys show the hidden number, so a sum of the two shown numbers is easy to catch
Printing, license and file formats
  • One PDF, US Letter 8.5 × 11 in. On A4 choose “fit to page”
  • One teacher or one household. Print unlimited copies for your own students, this year and next
  • Sharing the file itself needs a separate license
  • Digital download — nothing ships
How do I get the files?
  • The download link is on the order page the moment you pay, and in your inbox at the same time
  • Re-download from that link any time — no account needed
  • Wrong or broken file? Email support@pencillane.com and we fix it or refund you
Why get the bundle
  • Seeing the missing number in games and cards helps children think about the whole equation.
Missing Addends to 10 Assessments | K–1st Grade (6 Pages)
$3.00 · 6 pages

The problem

2 + ? = 6 and the answer is 8

Children see two numbers and an equals sign and add them. A question mark in the middle changes the job.

Adding the two numbers shown

2 + ? = 6 becomes 8 when a child adds 2 and 6. The question is how many more to make 6.

Counting from the start

To find the partner, children can count up from 2 on fingers. It works but takes a long time.

The question mark

The ? is just a number waiting to be found. Some children treat it as a sign or leave it blank until it is read as 'how many?'

Each item has a hidden number to find: 7 + ? = 8. Children count up from the first number to the total, or use the fact family.

What’s inside

6 pages of Missing Addends to 10, ready to print.

Short check-ups with a score box and answer key. One instruction line and a name line on every page.

6pages

Assessments

Short check-ups with a score box and answer key.

45problems

Missing Addends to 10

Written for Kindergarten to 1st grade.

1PDF

Print and go

US Letter, black and white, answer key included.

Look inside

Same layout on every page, so kids stop re-learning the instructions.

Page 1 page
Page 1
Page 2 page
Page 2
Page 3 page
Page 3
Page 1 page
Page 1
Page 2 page
Page 2
Page 3 page
Page 3
Name & date lineSame spot on every page.
One-line instructionShort enough for a child to read.
Answer key includedCheck the work in seconds.
Page numberSo a stack stays in order.

How it works

Ready before the printer warms up.

  1. 1

    Download

    Check out, and your download link is in your inbox and on screen in seconds. One PDF, 6 pages.

  2. 2

    Print

    Any printer, plain paper, black and white. Print one page or the whole stack.

  3. 3

    Hand out

    Morning work, centers, small groups, the kitchen table. Same format every day, so the routine sticks.

Get it — $3
A home printer printing a worksheet US Letter 8.5 × 11 · PDF

Outcomes

Find the missing number in an addition

Count up from the first number to the total.

  • 2 + 4 = 6
  • 7 + 1 = 8
  • 8 + 1 = 9
  • 1 + 3 = 4
  • 6 + 4 = 10
  • 2 + 7 = 9
  • 3 + 3 = 6
Missing Addends to 10: skill and grade fit

Who it’s for

Built for the kitchen table and the classroom.

Parents & homeschool

Cover one number with a finger or cup. Ask: what's hiding? Use counters to check.

Teachers

Fits first grade as a bridge between addition and subtraction.

Algebra readiness

Find-the-hidden-number problems are a first step to equations.

A teacher holding a stack of printed worksheets

Questions

Before you buy.

Is it subtraction?

Children can use subtraction, but the problems are framed as addition.

What if my child adds the two?

Ask them to check by putting the answer in: does 2 + 8 make 6?

How do I get the file?

The download link appears right after checkout and lands in your inbox at the same time. One PDF with 6 pages. No account needed.

Can I print it more than once?

Yes. One teacher or one household can print unlimited copies for their own students, this year and next.

Will it print in color?

The pages are designed to print in black and white, so they print clean on any home or school printer and do not eat a cartridge.

What if it isn’t right for us?

Email support@pencillane.com within 30 days and we refund the full $3. No form, no questions.

Find the hidden number

Missing Addends to 10: short check-ups with a score box and answer key. Answer key included.

Get it — $3
Instant download Print unlimited copies 30-day money-back