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1st grade worksheets & activities

Adding and subtracting within 20, counting to 120, tens and ones, telling time to the half hour and shapes, solved one detective case at a time. Plus science, ELA, social studies and phonics cases below.

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Math57Science1ELA & grammar2Social studies4Phonics11Escape rooms & games32
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Whole-class games you put on the board and play together. No logins, nothing to set up.

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1 More, 1 Less, 10 More, 10 Less, 1st grade math, back to school
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1 More, 1 Less, 10 More, 10 Less

1.NBT.C.5 · back to school

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Addition Within 20 Escape Room, 1st grade math, digital
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Addition Within 20 Escape Room

1.OA.C.6 · winter · digital

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Math · by standard

Every 1st grade math skill

Grouped the way the Common Core standards are, so you can find the pack for the unit you're teaching right now.

Grade 1 · Math · 1.OA

Operations & algebraic thinking

  • 1.OA.A.1Word problems within 20Case open
  • 1.OA.A.2Add three numbersCase open
  • 1.OA.B.3Properties of operationsCase open
  • 1.OA.B.4Subtraction as unknown addendCase open
  • 1.OA.C.5Count on to add & subtractCase open
  • 1.OA.C.6Add & subtract within 20Case open
  • 1.OA.D.7Meaning of the equal signCase open
  • 1.OA.D.8Missing numbers in equationsCase open
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Subtraction Within 20 Winter digital escape room for Grades K-2Subtraction Within 20 Winter Digital Escape Room1.OA.C.6 · Add & subtract within 20See the case file →Addition Within 20 Winter digital escape room for Grades K-2Addition Within 20 Winter Digital Escape Room1.OA.C.6 · Add & subtract within 20See the case file →Adding Near Doubles Digital Escape Room Valentine's Day preview 1Adding Near Doubles Digital Escape Room1.OA.C.6 · Add & subtract within 20See the case file →Addition and subtraction within 20 scoot task cardsAddition and Subtraction Within 201.OA.C.6 · Add & subtract within 20See the case file →First grade fact fluency 1.OA.C.6 detective gameAddition and Subtraction Within 201.OA.C.6 · Add & subtract within 20See the case file →
Beyond math

Reading, science & more

The same detective format: every right answer clears a suspect. Pick a subject below or from the bar at the top.

A 1st grade year

The year planner

One math suggestion a month that matches where most classes are in the curriculum.

AUGCounting to 120Try: Missing Numbers to 120
SEPAddition within 20Try: Addition Within 20 Escape Room
OCTSubtraction within 20Try: Subtraction Within 20 Escape Room
NOVAddition & subtraction word problemsTry: Thanksgiving Word Problems Escape Room
DECMaking 10Try: Making 10 Number Bonds
JAN10 more & 10 lessTry: 1 More, 1 Less, 10 More, 10 Less
FEBDoubles & near doublesTry: Adding Near Doubles Escape Room
MARComparing two-digit numbersTry: Number Order to 100 Escape Room
MAYEnd-of-year reviewTry: 1st & 2nd Grade Farm Escape Room
From the blog

Reading for 1st grade teachers

Classroom ideas, sub-day plans and seasonal activities.

Summer Activities That Stop the Slide: For Summer School, Home and the Last Week: Kiwiland Teaching Blog cover SeasonalOct 30, 2026

Summer Activities That Stop the Slide: For Summer School, Home and the Last Week

For the teacher finishing in June, the summer school teacher and the parent asking what to do in July: small, regular, self-checking work on...

Read the post → End of Year Activities After Testing: A Plan for the Last Four Weeks: Kiwiland Teaching Blog cover SeasonalOct 30, 2026

End of Year Activities After Testing: A Plan for the Last Four Weeks

Fifteen to twenty teaching days after the test, planned as a last pass through the year's skills the class will actually finish. Grades 2–9.

Read the post → Spring Activities for Testing Season: Easter, Earth Day and the Weeks Between: Kiwiland Teaching Blog cover SeasonalOct 30, 2026

Spring Activities for Testing Season: Easter, Earth Day and the Weeks Between

Built for the days around state testing: short, quiet, self-checking and still on standard. Spring, Easter and Earth Day, K–8.

Read the post → St. Patrick's Day Activities, and the March Review Before Testing: Kiwiland Teaching Blog cover SeasonalOct 30, 2026

St. Patrick's Day Activities, and the March Review Before Testing

March is the last clear run before state testing. A St. Patrick's week plan, plus the review days around it, for Grades 1–8.

Read the post → February Activities That Still Teach: Groundhog Day, the 100th Day, Valentine's Day and Presidents' Day: Kiwiland Teaching Blog cover SeasonalOct 30, 2026

February Activities That Still Teach: Groundhog Day, the 100th Day, Valentine's Day and Presidents' Day

Four holidays in the shortest month. A date-by-date plan with self-checking math cases, reading mysteries and digital escape rooms for K–9.

Read the post → Winter math and reading activities for January: Kiwiland Teaching Blog cover with The Big Freeze, 3-digit subtraction across zeros and The Hot Chocolate Case covers in the snow SeasonalOct 30, 2026

Winter Activities for the First Week Back: A January Reset Plan

The first week of January is a review week, not a fresh start. A first-week-back plan for winter math and reading that puts December...

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Questions teachers ask

Grade 1 FAQ

What math do 1st graders learn?

Common Core 1st grade math covers operations and algebraic thinking, number and operations in base ten, measurement and data, and geometry. The four focus areas are addition and subtraction within 20, place value with tens and ones, measuring length with units, and reasoning about the attributes of shapes. Students also count to 120, tell time to the half hour and organize simple data.

What addition and subtraction facts should 1st graders know?

First graders add and subtract within 20 using strategies such as counting on, making 10, doubles and near doubles, and relating subtraction to addition (1.OA.C.6). By the end of the year they should be fluent with addition and subtraction within 10. They also solve word problems within 20 and find the unknown number in equations such as 8 + ? = 11.

How high should 1st graders count?

First graders count to 120 starting at any number, and read and write numerals to 120 (1.NBT.A.1). They learn that a two-digit number is made of tens and ones and use that to compare two-digit numbers with the symbols >, = and <.

What does 10 more and 10 less mean in 1st grade?

Standard 1.NBT.C.5 asks students to find 10 more or 10 less than a two-digit number in their head, without counting, and explain how they did it. For example, 10 more than 47 is 57 because the tens digit goes up by one. A hundreds chart makes the pattern easy to see.

When do 1st graders learn to tell time?

Telling time starts in 1st grade. Students tell and write time in hours and half hours on analog and digital clocks (1.MD.B.3). Telling time to the nearest five minutes follows in 2nd grade.

What subjects do you have for 1st grade?

Math is the biggest set, with cases for every grade-level standard listed above. There are also science, ELA, social studies, phonics activities in the same detective format: students solve each question, match the answer to a suspect and cross suspects off until one is left.