Addition
Subtraction
Subtracting Across Zeros
Estimating Numbers
Word Problems
100

524 + 172 = ?

696

100

Solve the following subtraction problem:

843 - 121 = ?

722

100

Solve this subtraction problem:


200 - 89

111

100
Estimate the sum by rounding to the nearest ten. 


49+14

60

100
Jane makes money for each chore that she does at home.  She earned $1.50 for cleaning her room, $2.75 for doing the dishes and $3.05 for vacuuming.  How much money did she earn all together?

$7.30

200

Which number makes the number sentence true?


3,359 + 1,095 = ______ + 3,359

1,095

200

Solve the following subtraction problem:

584 - 293

291

200

Solve this subtraction problem:

1,000 - 250

750
200

Estimate the difference by rounding to the nearest hundred


842 - 321

500
200

Dan took a 3 day road trip.  He drove 134 miles the first day, 183 miles the next day and 100 miles the last day.  How many miles did he drive all together?

417 miles

300

There are 6,340 people at the Amusement Park on Saturday and 3,894 people at the park on Sunday.  How many people were at the park all together?

10,234 people

300

Ben has 348 baseball cards.  Cal has 125 baseball cards.  How many more baseball cards does Ben have then Cal?

223 more cards
300

find 900 - 258

642

300
Leawood Elementary School had a three bake sales last year.  In the fall, they sold 590 cupcakes.  In the winter, they sold 205 cupcakes.  In the spring, they sold 185 cupcakes.  What is the best estimate of the total number of cupcakes sold if you round to the nearest hundred?

1,000 cupcakes

300

Daisy collects 350 can goods for the food drive.  She collects 134 the first week.  She collects the rest the second week.  

Draw a model to show how you could solve this problem. 

Answers will vary 

400

There is a school carnival going on. 

148 students are playing games

134 students are eating snacks

59 students are at the dance party.  

How many students are at the carnival all together?

341 students
400

Mary has been collecting buttons for three years.  She has 584 buttons so far.  258 buttons are square and the rest are round.  How many buttons are round?

326 buttons are round
400

There are 3,000 seats in the gym.  1,830 people come in and sit in chairs.  How many chairs are left?

1,170 chairs are left

400

Miss Chamberlin's class reads 1,348 books during the first quarter, 1, 899 books during second quarter and 2,034 books third quarter.  What is the total amount of books if you estimated each number to the nearest thousand?

5,000 books

400

Julie buys 104 paper plates and 244 paper napkins.  To make her math easier, she changed her equation.  What number goes in the blank to make the equation true?

104 + 244 = 100 + ____

248

500

There are 3,548 boys and 1,939 girls in a school.  How many students are there all together?

5,487 students all together

500

Max has 2,349 marbles.  Sam has 1, 499 marbles. How many more marbles does Max have than Sam?

900 more marbles

500

Sue has $50.00.  She buys a movie for $14.99.  How much money does she have left after buying the movie?

$35.01

500

13,534 people attended the a concert on Friday. 16,107 people attended the concert on Saturday. Round the numbers to the nearest ten thousand.

 Estimate how many more people ended the concert on Saturday than Friday. 

2,000 more people

500

A clown at a carnival is selling balloon animals.  He sold 425 total animals.   Draw a model that would help you solve for the number of unicorns. 

150 dogs

250 parrots

___ unicorns

answers will vary

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