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Estimation
Addition
Subtraction
Problem Solving
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
Madison and Talia live on the same street as the movie theater. Madison lives farther away from the movie theater than Talia, but since Talia is in between Madison and the movie theater, Madison's mom is picking up Talia so they can go see The Hunger Games together! If Madison lives 3 miles from Talia, and 17 miles from the theater, How far away does Talia live from the movie theater?
What is 14 miles
100

What do you call the answer to an addition problem?

What is the sum?

200
Falls lake has lots of different fish living in it. There are 596 bass, 611 flounder, and 1,089 catfish. About how many more catfish are there than flounder rounded to the nearest HUNDRED?
What is About 500
200
4,625+736
What is 5,361
200
1,234-987
What is 247
200
Keenan has pears and oranges. He has 2 more pears than he has oranges. If the sum total of pears and oranges is 14, how many of each does he have? Hint: DRAW IT OUT!
What is 6 Oranges and 8 pears.
200

What do you call the answer to a subtraction problem?

What is the difference?

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
Sydney built a pyramid of blocks. She started off with 7 blocks for the base, then each level after that had one less than the one before/below it. How many blocks did she use in total to build the pyramid? DRAW IT OUT!
What is 28
300

What do you call the letter than standards for an unknown number in an equation?

What is a variable?

400
Estimate the sum total of the following numbers to the nearest HUNDRED: 536 695 3,050 999
What is 5,300
400
99,999+111,658
What is 211,657
400
5,000-4,952
What is 48
400
Farmer Bo has cows and chickens on his farm. In total, there are 38 legs on his farm of cows and chickens. If he has 7 cows, how many chickens does he have? Hint: DRAW IT OUT
What is 5
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
Statistically, thus far, there have been 1815 shark attacks in the USA, 1118 shark attacks in Australia, and 537 shark attacks in Africa. About how many more shark attacks have there been in the USA than Australia AND Africa together to the nearest HUNDRED?
What is about 200
500
987,654+321
What is 987,975
500
1,000-999
What is 1
500
Around the world, there have been a total of 547 shark attacks by Great White sharks, 158 attacks by Bull Sharks, and 213 attacks by Tiger sharks. How many more attacks were caused by Great White sharks than Tiger sharks?
What is 334
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!