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# Operations & Algebraic Thinking

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• Two pages of simple addition and subtraction word problems.
• Mrs. Turkey bought twenty green apples and fourteen red apples to make apple pies. What is the total number of apples Mrs. Turkey bought?
• These fish-themed pages serve as a colorful guide for word problems, displaying the mathematical symbols (+/-) that accompany the most common addition and subtraction keywords
• Colorful math posters that help teach the basic concepts of addition for older students.
• "Anne is a witch. She has two black cats. How many more does she have to find if she needs ten black cats for her spell?" Five Halloween-themed word problems.
• "Yolanda’s Thanksgiving turkey weighs twenty pounds. Her family eats seventeen pounds at dinner. How many pounds are left?"
• Glue the four shells that make a math fact family into the correct places.

• A Christmas stocking shape book of math story problems about Christmas cookies. Six problems and answer page.
• Cute Powerpoint with addition and subtraction word problems. Happy Birthday theme and animations. Common Core Math: K.OA.2 (Review for Grade 1)

• Cute Powerpoint teaching sets of numbers for simple addition.  Common Core: Math: K.OA.3 (Review for Grade 1)

• Simple addition and subtraction word problems with a holiday/Christmas theme.
• 3 tens = 30; 1 ten + 3 tens = X tens; 2 worksheets. Common Core: 1.NBT.1, 2.NBT.2
• Students use turkey-shaped cards (numbered 1-20) to make addition and subtraction equations. Instructions included.
• Students use star-shaped cards (numbered 1-20) to make addition and subtraction equations.
• One poster says "Addition Keywords" and one says "Subtraction Keywords"; these match our colorful fish-themed addition and subtraction posters.
• Math fact families with a plant theme.
• A booklet of Montessori Golden Bead Blocks tens place value; count, add.
• "There are six clowns in the Champions Circus. The ringmaster hires four new clowns. Three of the old clowns begin to train as acrobats. How many clowns are there now?" Answer the four clown-themed questions and solve a riddle.
• "Susan saw ten butterflies today. She saw four butterflies in the morning. How many did she see in the afternoon?" Eight simple word problems using addition and subtraction up to twenty.
• "Cowboy Tom ropes seven cows and puts them into a corral. He forgets to shut the gate and four escape. How many are left?"
• Nine children are on the school bus. Five get off at the first stop. How many are left on the bus?
• "Ten ghosts want to fly to the haunted house for a Halloween party. Two get lost. How many ghosts arrive at the haunted house?" Five math word problems with a Halloween theme.
•  Cute graphics for teaching the concept of adding numbers to ten.  Common Core: K.Oa.4 (Review for Grade 1)

• These fish-themed pages serve as a colorful guide for word problems, displaying the mathematical symbols (+/-) that accompany the most common addition and subtraction keywords.

• Draw snowballs to complete each ten frame.

• “A pod of fourteen right whales are feeding under the arctic ice. Four leave to hunt elsewhere. How many are left?” Five subtraction word problems with an endangered animal theme.
• This chart has a variety of uses for your counting and place value lessons. Students can color the penguins for patterning, cut and paste in order, and use for addition and subtraction.

• Maddie finds 3 sand dollars. She then spies 4 sea urchins. What is the total number of items that Maddie has found since she started searching?
• This mini-unit clearly explains the concept of "fact families" and presents different ways to review the material.
• No matter what time you work with math, our new "Morning Math" series is a great way to open students' eyes to the daily uses of math. Simple word problems for beginning math students ("Draw 5 apples. Put an X over 3 of them. How many apples do you have?") start the series.
Common Core: K.OA1, K.OA2, 1.OA1

• A blackline house for multiplication and division "fact families" to live in.
• "Jane built five snowmen after the last snowstorm. Two of them have melted. How many of Jane's snowmen are left?" Eight word problems using addition and subtraction up to twenty.
• A blackline house for addition and subtraction "fact families" to live in.
• Jerry is seven years old. Alice is two years older than Jerry... One page, six problems.