Estimation

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

A frog is at the bottom of a 10 foot well. Each day he climbs up 3 feet. Each night he slides down 1 foot. On what day will he reach the top of the well and escape? (Days in numbers)

What is on the 5th day!

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

In Mrs. Gardener's garden, there are 5,321 white roses, 3,529 lilies, 1,958 daises, 952 caterpillars, 723 butterflies, and 1,984 tulips. How many different TYPES of flowers are there all together?

What is 4

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

In Mrs. Gardener's garden, there are 5,321 white roses, 3,529 lilies, 1,958 daises, 952 caterpillars, 723 butterflies, and 1,984 tulips. How many more white roses does she have than daises?

What is 3363

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!

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