Estimation
Addition
Subtraction
Word Problems
Misc.
100

Estimate the total of the following addition problem and explain how you got your answer

260 + 510

(:

100

   13,082

+20,925

34,007

100

   9,826

-    712

9,114

100

A grocery store sold 15,017 bananas in January and 8,901 bananas in February. How many bananas did the grocery store sell in total?

23,918

100

What does estimate mean?

An estimate is a thoughtful guess.

200

Estimate the total of the following subtraction problem and explain how you got your answer

890 - 320

(:

200

   120,501

+245,027


365,528

200
  678

 -519

159

200

Mr. Potato Head had $18,297 in his bank account. He spent $5,172 on Monday and then he spent $1,290 on Tuesday. How much money is left in his band account?

$11,835

200

Is a word problem asks for the difference, what operation will you use (addition, subtraction, multiplication, or division)

Subtraction

300

Estimate the total of the following addition problem and explain how you got your answer


5,836 + 755

(:

300

    725,824

+   91,259

817,083

300

  15,926

-  7,163

8,763

300

A beach had 40,127 visitors in July, 72,197 visitors in August, and 18,178 visitors in September. How many visitors were at the beach all together?

130,502

300

   7,837

+2,189

10,026

400

Estimate the total of the following subtraction problem and explain how you got your answer

674 - 590

(:

400

    75,269

+  81,735

157,004

400

  55,196

- 27,179

28,017

400

Ms. Brown had 8,900 pencils when school started. By September 10, she only had 3,197 pencils left. How many pencils did her students seemingly eat?

5,703

400

  82,016

-81,943

73

500

Estimate the total of the following subtraction problem and explain how you got your answer

6,917 - 2,302

(:

500

   397,926

+    6,729

404,655

500

  629,136

- 592,109

37,027

500

There are 10,873 leaves in Bob's yard and 29,639 leaves in Ed's yard. What is the difference?

18,766

500

  89,462

+27,182

116,644

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