Unit 2: Addition and Subtraction Review

Find the difference between 954 and 379

• 675

• 526

• 575

• 379

The best estimate of the sum of 678 and 124 is ____

• 700, because 600 + 100 = 700

• 800, because 700 + 100= 800

• 800, because 600+ 200 = 800

• 900, because 700+ 200 = 900

 Ms.Hadden received 325 expo markers on Monday morning, On Friday afternoon Ms.Hadden received 489. How many markers did Ms.Hadden receive this week?

• 489

• 789

• 704

• 814

4. David is counting the number of crayons he has. 

He has 137 crayons in his color bag

He has 64 crayons in his pencil box

He has 32 crayons in his backpack. 

How many crayons does David have?

David has ________ crayons.

Evaluate responses using AI:

OFF

 Sofia earned tickets each day of the week. She earned 8 tickets each day. Sofia started the week with 10 tickets. Which pattern shows how many tickets Sofia earned?

• 8, 16,24,32

• 10,20,30,40

• 8,9,10,11,12

• 10, 18, 26, 34

6. Brian and Cristian have some chocolates. Brian has 95 more chocolates than Cristian. Cristian has 174 chocolates. How many chocolates does Brian have?

Brian has _____ chocolates. 

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Jennifer and Steven are friends. The table below shows the age in 3 different years. 

________

How old will Steven be when Jennifer is 19 years old?

• 19

• 21

• 23

• 32

  There are 365 days in a year. Last year it was humid on 127 days, windy on 85 days, and sunny on the remaining days. On how many days was it sunny last year? 

It was sunny on _____ days last year. 

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OFF

A zoo kept track of how many people visited the past 3 days. 

What is the best estimate of the difference between the number of people who visited on Wednesday than thursday?

• 400

• 300

• 200

• 100