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Operations with Numbers

Problems in this category involve use of basic operations (addition, subtraction, multiplication, division), sometimes in combination. They may also ask students to apply their skills in mental math, rounding and estimation, and help students develop operational sense.
Some of these problems address these specific subtopics:
 Related Resources

Interactive resources from our Math Tools project:
Math 1: Operations with Numbers
NCTM Standards:
Number and Operations Standard for Grades PreK3
Access to these problems requires a Membership.

Add or Subtract?


Grade 2. Find the answer to a question and then settle a disagreement between
two friends.
... more>>

Ants on a Bun


Grade K. Find out how many ants were at a picnic.
... more>>

Apple Celebration


Grade 1. Figure out the growth pattern of a tree to predict its future height.
... more>>

A Summer Garden


Grade 2. Figure out the number of sunflowers in a garden.
... more>>

A Trip to the Ballpark


Grade 2. Figure out how many blocks Kevin walked between his home and the
park.
... more>>

At the Bake Sale


Grade 1. What can you can buy at the bake sale with the money you have?
... more>>

At the Fair


Grade 2. Find the different ways you can earn enough points to win a toy.
... more>>

At the Grocery Store


Grade 1. Find combinations of fruit Katie could buy so that she has the same
amount of fruit as Jackson.
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A Walk to the Park


Grade K. Find the total number of blocks Tom walked.
... more>>

Baby Birds


Grade K. Find out how many baby birds are left in the nest.
... more>>

Back to School


Grade 2. Figure out how many packs of pencils Mr. Gonzalez needs for his
class.
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Balloon Fun


Grade K. Find out the number of balloons two friends have in all.
... more>>

Battastic!


Grade 1. Figure out the combined wingspans of some friends in bat costumes.
... more>>

Ben's Ice Cream Cone


Grade 1. Find the different types of ice cream treats Ben can get.
... more>>

Birthday at the Ballpark


Grade 2. Figure out how many car trips it will take for all of the friends to
get to the ballpark.
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Book Club


Grade K. Figure out how many more books Ben has to read.
... more>>

Bubblegum


Grade 2. Divide pieces of bubblegum equally among three sisters.
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Building a Tower

Grade K. How many blocks has Ming put on Ali's tower?
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Bus Stop


Grade K. Figure out what time Sally leaves for the bus.
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Catching Minnows


Grade 2. Figure out how many minnows Anna will catch if she continues a
pattern.
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Charlie's Gumballs


Grade 2. How many gumballs does Charlie have left after sharing them with his
friends?
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Cleanup Time


Grade 1. Figure out how many pencils are left on the floor after some have
been picked up.
... more>>

Clowning Around


Grade 1. Use repeated addition to find out how many balls the clowns are
juggling.
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Colorful Candies


Grade K. Find out how many blue candies Sam has.
... more>>

Counting Cars


Grade K. Show how Maya can use tallies to count the number of cars that drove
down her street.
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Counting Comics


Grade 1. How many comic books does Sondra have?
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Counting Gumballs


Grade K. Figure out how many extra gumballs Steve has.
... more>>

Counting Shells


Grade 2. Use the clues to figure out how many shells Jack has.
... more>>

Count Them Up


Grade 1. Write a number sentence to explain how many pennies Darryl has.
... more>>

Dog Packs


Grade 2. Figure out how many dogs were in each of 3 packs before more dogs
joined them.
... more>>

Donut Sale


Grade 1. Figure out how much Geneva has to spend for 8 donuts.
... more>>

Donuts on a Tray


Grade 2. Help Glenda to figure out how to arrange snacks on a tray in equal
rows.
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Drumsticks


Grade 1. Figure out how many drumsticks the band needs.
... more>>

Earning Money


Grade 1. Answer questions about doing chores to earn allowance.
... more>>

Field Day


Grade 1. Use addition to find out how much time Sofia spent running races.
... more>>

Flower Fun


Grade 1. Figure out how many pink tulips Michelle will give to her
grandmother.
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Fourth of July


Grade 2. Figure out how many hot dogs and hot dog buns a mom needs to buy for
a barbecue.
... more>>

Getting Allowance


Grade 1. Find ways to make 50 cents using different coins.
... more>>

Get Yer Popcorn!


Grade 2. Add and subtract money and compare prices of snacks at the school
play.
... more>>

Goldfish Galore


Grade 1. Divide 20 goldfish evenly between two friends.
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Goody Bags


Grade 2. How many red and green gumdrops will Antonia put in each goody bag
if she wants each goody bag to be different?
... more>>

Growing Up


Grade K. Figure out how much more I have to grow to be as tall as my dad.
... more>>

Gum for Everyone!


Grade 1. Can 10 (and then 11) pieces of gum be shared equally among three
people?
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Hannah's Cookies


Grade K. Determine how many cookies Jacob has, based on the number of cookies
Hannah has.
... more>>

Helping Hands


Grade 1. Use fractions to divide some brownies between three classmates.
... more>>

How Big is 100 Pennies?


Grade K. Estimate whether 100 pennies can fit on a piece of paper.
... more>>

How Big Is Your Foot?


Grade K. Figure out how long your foot is and how long �twice as long� would
be.
... more>>

How Many Berries Did I Eat?


Grade 1. Reason about whether I ate more blueberries or raspberries.
... more>>

How Many Cookies Can I Buy?


Grade 2. Find out how many cookies you can buy at the bake shop with the
money you have.
... more>>

How Many Pinecones?


Grade K. Use the information given to figure out how many pinecones Midori
has.
... more>>

How Tall Is Your Tower?


Grade 1. Identify the pattern and use it to answer some questions about a row
of block towers.
... more>>

Ice Cream Party


Grade K. Figure out the number friends that cannot come to a birthday party.
... more>>

Ice Cream Sandwiches


Grade K. Find out how many cookies Ariana needs to make enough treats for
her friends.
... more>>

Jordan's Jobs


Grade 1. Figure out if Jordan has enough money to buy a scooter.
... more>>

Letter to Grandma


Grade 1. Use fractions to figure out the number of folds in a piece of paper.
... more>>

Magic More Machine


Grade K. Figure out what the Magic More Machine does when you put fruits and
veggies into it.
... more>>

Magic Rabbits


Grade K. Figure out how many rabbits will appear from the magician�s hat.
... more>>

Making Sandwiches


Grade 1. Help Ricardo and Gloria divide their task as fairly as possible.
... more>>

More Milk!


Grade 2. Figure out how many glasses of milk Davin drinks in one week.
... more>>

New Pencils


Grade K. Figure out how many pencils Paul had before he bought new ones.
... more>>

Number Fun


Grade 1. Use clues to help Dominic solve a number riddle.
... more>>

Pattern Block Designs


Grade 1. Follow the instructions to build a pattern block design and explain
your choices.
... more>>

Pick 'em Up!


Grade K. Figure out how many more beads are left on the floor after Sharon
picks some of them up.
... more>>

Picking Flowers


Grade K. Find combinations of flowers that sum to 6.
... more>>

Picnic at the Park


Grade 2. Figure out how many sandwiches one loaf of bread can make.
... more>>

Picture This


Grade 2. Find out how many pictures Isabel will finish if she keeps drawing
more each day.
... more>>

Pinecones


Grade 2. Figure out how many pinecones Marissa collected and how many more
she needs to make her mother a present.
... more>>

Pizza Predicament


Grade 1. Divide a pizza equally among four people so that each person gets
their favorite topping.
... more>>

Play Ball!


Grade 1. Figure out how to make kickball teams equal.
... more>>

Play Date


Grade 1. Figure out how far Jayleen walked.
... more>>

Playground Fun


Grade K. Figure out how many children are on the monkey bars.
... more>>

Playing with Patterns


Grade 1. Find the next numbers in the pattern.
... more>>

Prize Box


Grade K. Find out how many tickets Manuela needs in order to choose something
from the prize box.
... more>>

Puppies for Sale


Grade 1. Determine how many puppies are in the crates.
... more>>

Reading Superstars


Grade 2. Figure out how many stars each student earned for giving book talks.
... more>>

Rock Garden


Grade 2. Figure out how much some rocks weigh.
... more>>

Saving Up


Grade 2. Figure out how much money Jackie saves after three weeks of
babysitting.
... more>>

Seashells by the Seashore


Grade 2. Use subtraction and compare numbers of seashells in the Smith twins�
collections.
... more>>

Snack Time!


Grade 1. Figure out how many graham crackers are needed to feed three friends.
... more>>

Snow Day!


Grade 1. Figure out how many mittens the Lee children need.
... more>>

Snow Globes


Grade 2. Follow a pattern to figure out how many snow globes Angie will place
on her shelves.
... more>>

Spin Art


Grade 2. Figure out how many more bottles of purple paint Marcus and Lyle
need so they don�t run out before the school fair ends.
... more>>

Summer Days


Grade 1. Use your knowledge of time and money to answer some questions about
a lemonade stand.
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Superhero

Grade 1. Help the superhero figure out how many laps he's done.
... more>>

The Card Game


Grade 2. Figure out how many dots are on each card in Suki�s card game.
... more>>

The Class Play


Grade 2. Figure out how many ways 12 chairs can be placed in equal rows.
... more>>

The Cookout


Grade 2. Find out how many burgers Ali cooks at the cookout.
... more>>

The Eagle and the Bear


Grade 1. Figure out how many fish the eagle has to catch to tie the bear in
their fishing contest.
... more>>

The Morning Bus


Grade 1. Find out if Beth will make it to the school bus on time.
... more>>

The Pond


Grade 1. Solve a multistep problem to figure out how many geese are left in
the pond.
... more>>

The Sticker Collection


Grade K. Determine how many stickers David has, based on how many stickers
his sister has.
... more>>

The Yard Sale


Grade K. Which two things can you buy at a yard sale with 9 pennies?
... more>>

Trading Card Price Tag


Grade 2. How much is Richie�s Red Sox card worth?
... more>>

Trail Mix


Grade 2. Help Samantha double a recipe for trail mix.
... more>>

Trolls and Dogs


Grade 2. Figure out how wide 2 stuffed animals are.
... more>>

Try It Out


Grade K. Show the number 10 in different ways.
... more>>

TugofWar


Grade 2. Figure out which team has the advantage in a game of tugofwar.
... more>>

Warming Up!


Grade 1. Divide marshmallows equally between Suresh and his sister.
... more>>

Who Has More Apples?


Grade 1. Figure out how many more apples Alexa has than Tom.
... more>>

Winter Is Coming!


Grade 2. Figure out how many nuts a squirrel has left.
... more>>
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