Math 1.3
Number and operations. The student applies mathematical process standards to develop and use strategies for whole number addition and subtraction computations in order to solve problems. The student is expected to:
- (1) use concrete and pictorial models to determine the sum of a multiple of
10 and a one-digit number in problems up to 99;
- (A) use objects and pictorial models to solve word problems involving joining, separating, and comparing sets within 20 and unknowns as any one of the terms in the problem such as 2 + 4 = [ ]; 3 + [ ] = 7; and 5 = [ ] - 3;
- (B) compose 10 with two or more addends with and without concrete objects;
- (C) apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10;
- (D) explain strategies used to solve addition and subtraction problems up to 20 using spoken words, objects, pictorial models, and number sentences; and
- (E) generate and solve problem situations when given a number sentence involving addition or subtraction of numbers within 20.
- Free Plan
Subtract From 10 Board Game
Have a “blast” with this space-themed “Subtract From 10” board game that gives your students the practice they need with tens subtraction facts.
- Free Plan
Bump! Subtraction to 20 Board Game
Practice subtraction facts to 20 with a fun and engaging math game.
- Free Plan
Making Ten Activity
Practice making 10 using objects, pictorial models, and number sentences with this activity mat.
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Addition and Subtraction Work Mat
Practice addition and subtraction concepts daily with a printable work mat for students.
- Free Plan
Making 10 Number Bonds - Worksheet
A worksheet to practice the addition strategy of making 10.
- Plus Plan
Addition and Subtraction Word Problems Escape Room
Engage students with this addition and subtraction interactive escape room.
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Using Doubles to Subtract Board Game
Practice using doubles to subtract with this fun, apple-themed board game.
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Near Doubles Game: Wizard's Walk
Break out our near doubles game “Wizard’s Walk” for an engaging way to practice the near doubles strategy.
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Adding Doubles Board Game
Play our adding doubles board game to give your students a chance to practice their addition fact fluency.
- Free Plan
Printable Ten Frames (Single and Double)
Introduce these printable ten frames to your students to promote number sense with hands-on learning.
- Free Plan
Addition Strategies Cheat Sheet
Help students understand the different addition strategies with this helpful cheat sheet.
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Addition and Subtraction Word Problems - Teaching Slides
Introduce addition and subtraction word problems with this clear, interactive teaching slide deck.
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Bump! Addition to 20 Game
Practice subtraction facts to 20 with a fun math game.
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Word Problem Solving Mats
Use these 1st grade addition and subtraction solving mats to support students as they practice solving word problems.
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Count on Facts Board Game: Counting On 1
Provide your early learners with this count on facts board game to engage them as they learn to add by counting on one.
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Counting On Game
Engage your students with this fun and colorful counting on game that gives your students practice with the “counting on” addition strategy.
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Adding Numbers Game Board: Making Ten Board Game
Introduce this Adding Numbers Game Board: Making Ten board game to your students to give them the practice using the “make a ten” addition strategy.
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Color by Number Addition and Subtraction Worksheets
Combine math and art with our color by number addition and subtraction worksheets that feature problems with solutions up to 20.
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Addition Strategy: Counting On – Worksheet
Practice the “counting on” addition strategy to solve addition problems to 20.
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Simple Addition Riddle Worksheet
Download this addition and subtraction riddles pack to give your students fun, meaningful practice with one‑ and two‑digit addition and subtraction.
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Friends of 10 Addition Poster Bundle
Print the ultimate Friends of 10 poster bundle with 10 printable classroom posters designed to show students how different combinations of numbers connect to make the same number.
- Free Plan
1st Grade Halloween Addition Game - Roll-a-Potion
Roll and add to create a magic potion, then draw it in the cauldron with a printable Halloween game.
- Plus Plan
Fact Family Houses Worksheet Pack
Use these fact family houses worksheet set to practice addition and subtraction fact families with your students.
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Rainbow Number Facts (Making 10) - Board Game
Practice the addition strategy of making ten with this board game.
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Double Dinos - Using Doubles Facts to Add Near Doubles Worksheet
Practice the “near doubles” addition strategy to solve addition problems to 20.
- Free Plan
Addition and Subtraction Mat - Apple Tree
Solve addition and subtraction problems up to 10 with a hands-on apple math center.
- Plus Plan
Subtraction within 20 - Color by Number Worksheet
Reveal the mystery picture by solving the subtraction problems with a color-by-number worksheet.
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Rainbow Number Bonds - Math Game
Practice number bonds with this fun rainbow-themed hands-on activity.
- Plus Plan
Adding to Multiples of Ten up to 100 – Halloween Mystery Picture
Celebrate the coming of Halloween and practice adding 2-digit numbers up to 99 with a set of addition color by number worksheets.
- Free Plan
Addition Strategy - Counting On Worksheet
Solve addition problems in this 2-page Counting On Addition Worksheet.
- Plus Plan
Plus One and Minus One Math Machine Worksheet
A worksheet to practice generating a number that is one more than or one less than another number.
- Free Plan
Fact Family Find and Flip - Addition and Subtraction Up to 20
Addition and subtraction game cards demonstrating the relationship between fact families.