Estimation and stuff
Addition
Subtraction
Grab Bag of Challenges!
100
Cooper spent $245 at the book fair. Mackenzie spent $189. Estimated to the nearest hundred, about how much did Cooper and Mackenzie spend at the book fair together?
What is $400
100
325+675
What is 1,000
100
456-123
What is 333
100

#1 Assessment Practice

Write an equation to find how many hot dogs were sold.

What is 3,825+1,297 + 4,175=a

200

#1 Assessment Practice

Letter A only.

What is About 4,000+1,000+4,000=9,000

200
4,625+736
What is 5,361
200

#6 Assessment Practice

24,421-15,029

What is 9,392

200

Fill in the blank

256+678=_____+256

What is 678

300
East Carolina University has 28,499 students. NC State University has 31,569 students. About how much bigger is the student population at NC State University than East Carolina University rounded to the nearest THOUSAND?
What is about 4,000
300
695,123+123,456
What is 818,579
300
65,487-58
What is 65,429
300

Assessment Practice #3

What is 9 tens and 3 thousands

3694


400

#10

Letter A

What is 1,219+ 4,620=L

1,906+4,287=T

400

#1 Assessment Pratice

How many hot dogs were sold?

What is 9,297

400

#2 on Assessment Practice

8,000-6,280

What is 1,720

400
What is it called when you are trying to find ABOUT how much two numbers are added or subtracted from each other?
What is estimation
500

# 10 Assessment Practice

Letter B only

Round to the hundreds place!!!!

What is 400

Last Year:1,200+4,600=5,800

This year:1,900+4,300=6,200


500

#8 on Assessment Practice

8,723 + 2,849 + 6,419

What is 17,991

500
1,000-999
What is 1
500

If I was subtracting two numbers from each other, but I didn't have enough in my thousands place, where would I go to borrow from?

What is the ten thousands place!

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