Math 1.5
Algebraic reasoning. The student applies mathematical process standards to identify and apply number patterns within properties of numbers and operations in order to describe relationships. The student is expected to:
- (1) recite numbers forward and backward from
any given number between 1 and 120;
- (A) skip count by twos, fives, and tens to determine the total number of objects up to 120 in a set;
- (B) use relationships to determine the number that is 10 more and 10 less than a given number up to 120;
- (C) represent word problems involving addition and subtraction of whole numbers up to 20 using concrete and pictorial models and number sentences;
- (D) understand that the equal sign represents a relationship where expressions on each side of the equal sign represent the same value(s);
- (E) determine the unknown whole number in an addition or subtraction equation when the unknown may be any one of the three or four terms in the equation; and
- (F) apply properties of operations to add and subtract two or three numbers.
- Plus Plan

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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Numbers 1–20 Clip Cards
Facilitate counting practice with this set of multisensory peg cards.
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Missing Addend to 10 Flashcards
Practice all the ways to make ten with this set of flashcards.
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Counting by 1s Picture Puzzles
Use this fun sorting activity for your students to practice ordering numbers in sequential order starting at a number other than 1.
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10 More 10 Less Sorting Card Game
Engage your students and have them practice reading statements about values 10 more or 10 less, then and determining if the statement is accurate.
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Ten More, Ten Less Within 100 - Cut and Paste Worksheet
Practice adding and subtracting 10 from given numbers within 100 in this cut-and-paste worksheet.
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Basic Subtraction Word Problems - Worksheet
Solve subtraction word problems by drawing picture models with a printable subtraction worksheet.
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Number Line Match-Up Activity (Up to 120)
Match two-digit whole numbers on a number line with this set of 32 task cards.
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Printable Skip Counting Worksheets and Charts
Practice and review skip counting by 2,3,4,5,and 10 with a pack of printable skip counting worksheets and anchor charts.
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Math Warm-Ups Interactive PowerPoint - Grade 1
A PowerPoint providing a series of warm-up activities for Grade 1 students across the mathematics curriculum.
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Counting Forwards and Backwards Within 100 - Cut and Paste Worksheet
Practicing counting forwards and backward from a given number within 100 with this cut and paste worksheet.
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Skip Counting to 100 - Card Game
Practice skip counting by 2, 5, and 10 with this card game for small groups.
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Christmas Printables - Math Skip Counting Puzzles
Grab a set of 10 printable Christmas puzzles to help students skip count in the classroom.
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Secret Number Patterns – Card Game
Keep your secret number pattern hidden as you race to be the first to create number patterns based on given rules.
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Skip Counting by 2, 5, & 10 – Worksheet
Practice counting by 2, 5, and 10 with this skip counting worksheet.
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100 Day STEM Challenge
Count to 100 while fostering critical thinking and problem-solving skills with this set of 11 task cards.
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Rolling to 100 Board Game
Practice counting to 100 by 1's with this interactive hundreds chart board game for multiple players.
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100 Action Verbs
Practice counting to 100 by 1’s and 10’s with this set of 24 action cards that get students moving, reading, and writing.
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1-100 Number Chart
Count by 1’s with your students by arranging number tiles 1-100.
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100 Chart Missing Numbers
Practice counting forward beginning from a given number with this set of 100 charts and recording sheets.
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Whole Numbers on a Number Line Worksheet
Practice finding the missing number on number lines.
- Free Plan

Roll and Color Worksheet - One More, One Less
An interactive worksheet to practice finding the number that is 1 more and 1 less than a given number.
- Free Plan

100th Day Snack Template
A template for students to use to count out 100 snack items!
- Plus Plan

Roll, Add, and Color - Easter Basket
A fun roll, add, and color sheet featuring an Easter basket.
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Roll, Add, and Color - Easter Bunny
A fun roll, add, and color sheet featuring an Easter bunny.
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One More, One Less Match-Up - Two-Digit Numbers
Identify one more or one less of a given 2-digit number with this set of 36 match up cards.
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Ten More, Ten Less Match-Up - Two-Digit Numbers
Identify ten more or ten less of a given 2-digit number with this set of 36 match up cards
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Ten More, Ten Less Worksheet
Practice or review adding and subtracting 10 from a given number.
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One More, One Less Worksheet
Practice foundational addition and subtraction facts using the concepts of one more and one less.
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One More, One Less - Worksheet
Practice foundational addition and subtraction facts using the concepts of one more and one less.
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Number Talks - Balancing Equations Task Cards
Build number sense skills with this set of 40 task cards.
- Plus Plan

Ten More, Ten Less Task Cards
Practice identifying 10 more and 10 less than a given number with our set of 24 task cards.