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.
- Plus Plan
Subtraction Dog – Worksheet
Practice subtraction facts with this set of differentiated worksheets.
- Plus Plan
Word Problem Task Cards - 2-digit + 1-digit Addition
Practice adding 2-digit and 1-digit numbers with this set of 16 word problem task cards.
- Plus Plan
Open-ended Math Problem Solving - Grades 1, 2, and 3 (Task Card Version)
A set of 20 open-ended problem solving task cards covering a range of mathematical concepts.
- Plus Plan
Open-Ended Math Problem Solving - Grades 1, 2, and 3 (PowerPoint Version)
A PowerPoint with 20 open-ended problem solving questions covering a range of mathematical concepts.
- Plus Plan
Dinosaur Math - Addition and Subtraction (Version 2)
Solve the addition and subtraction number sentences to color the dinosaur.
- Free Plan
Taking From 10 - Number Facts Board Game
Practice the "Taking from 10" subtraction strategy with this board game.
- Plus Plan
Subitize to 10 Task Cards — Number Talks
Help your students subitize to 10 and beyond with these number talk task cards.
- Plus Plan
Combinations of 10 and 20 Posters
Easily recognize combinations of 10 and combinations of 20 with this visual poster set.
- Plus 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
Halloween Addition Worksheet
Count on to solve spooky addition problems in this 2-page Halloween Addition Worksheet.
- Plus Plan
Number Bonds Math Center Activity
Use this hands-on number bonds (addition and subtraction) strategy activity in your next guided math group lesson!
- Plus Plan
Cut & Paste Fact Family Worksheets
Use these fact family houses worksheet set to practice addition and subtraction fact families with your students.
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Number Talks - Double Digit Addition Task Cards
Build number sense skills with this set of 24 task cards.
- Plus Plan
Addition Strategies to 20 Workmat
Practice using a variety of addition strategies to add numbers up to 20.
- Plus Plan
Pizza-Themed Near Doubles Task Cards
Practice quick recall of near doubles facts with this cute pizza-themed task cards activity.
- Plus Plan
Turnaround Facts Flip Flop Task Cards
Develop number sense with addition turnaround facts to 20 with these cute flip flop fact task cards.
- Plus Plan
Subtraction Tarsia Worksheets- Math Puzzles
Print a set of 7 Tarsia puzzles to practice solving single-to-multi-digit subtraction problems.
- Plus Plan
Making Monsters Subtraction - Halloween Math Worksheet
Have some spooky subtraction fun with three differentiated Halloween subtraction worksheets.
- Plus Plan
Subtraction Stew - Halloween Math Worksheet
Have some spooky subtraction fun with a Halloween picture-model subtraction worksheet.
- Plus Plan
Bar Model Subtraction - Math Color By Number Worksheet
Bring a bit of spooky math fun into the classroom with a Halloween color by number worksheet focused on subtraction using a bar model.
- Plus Plan
Number Bonds Worksheet - Cut and Paste
Practice subtraction up to twenty with a cut-and-paste number bond worksheet.
- Plus Plan
Number Bond Subtraction - Task Cards
Boost subtraction skills with printable subtraction number bonds task cards.
- Plus Plan
Counting Backwards to Subtract - Number Fact Board Game
Practice subtracting by counting backwards with a pair of printable subtraction games.
- Plus Plan
Subtraction Made Easy: Counting Back on a Number Line — Printable Poster
Provide your students with a daily reminder of the subtraction on a number line strategy with a printable anchor chart.
- Plus Plan
Subtraction within 20 – Number Bond Worksheet
Practice subtraction strategies, including number bonds and picture models, with a printable subtraction worksheet.
- Plus Plan
Numbers to 30 - Tens Frames - Printable
Use a printable ten frame when working on counting, addition and subtraction, odd and even numbers, or place value.
- Plus Plan
Addition and Subtraction Work Mat
Practice addition and subtraction concepts daily with a printable work mat for students.
- Plus Plan
Subtraction Strategies - Ten Frame Printable Bingo Game
Practice using ten frames to subtract single-digit numbers in a whole class bingo game.
- Plus Plan
Subtraction within 20 - Color by Number Worksheet
Reveal the mystery picture by solving the subtraction problems with a color-by-number worksheet.
- Plus Plan
Sunflower Subtraction Strategies Interactive
Practice using the ten-frame subtraction strategy with a fun self-checking interactive activity.
- Plus Plan
Subtraction Using Picture Models Worksheet
Practice subtracting numbers to 12 using picture models with a printable subtraction worksheet.
- Plus Plan
Pirate's Plunder - Number Line Subtraction Game
Practice using the jump strategy for subtraction from 20 with an exciting pirate-themed math game.