Add It Up
Subtract It Down
Word Problems
Review
Reasonableness
100
3,674 + 4,369=
What is 8,043
100
8,715 - 5, 923=
What is 2,792
100
At a tire factory, 3,166 tires were made on Thursday and 2,941 tires were made on Friday. How many tires were made on Thursday and Friday in all?
What is 6,107 tires
100
Round 25,196 to the nearest thousand
What is 25,000
100

Round each addend to the nearest hundred to estimate for reasonableness: 1,232 + 1,949 + 2,756

1,200 + 1,900 + 2,800

200
6,000 + 3,173=
What is 9,173
200
6000-2,173=
What is 3,827
200
Sara scored 2,293 points in a video game. That was 1,536 more than Elvin's score on the same game. How many points did Elvin score?
What is 757 points
200
Write in base-ten numeral: 50,000 + 80 + 3
What is 50,083
200

When rounded to the nearest hundred 1,145 rounds to:__________________

1,100

300
5,215 + 3,107=
What is 8,322
300
9,534 - 4,085=
What is 5,449
300
There are 11,500 seats in the basketball arena. For one game, 9,465 seats were filled. How many seats were empty?
What is 2,035 seats were empty
300
400 x 300
What is 120,000
300
A Jet blue plane flies at an altitude of 24,300 feet and a single engine plane flies at an altitude of 10,125. About how much higher is the Jet blue plan than the single engine plane?

If rounded to nearest hundred the Jet Blue plane is about 14,200 feet higher.

400
2,869 + 25,946=
What is 28,815
400
The difference in 8,125 and 15,219
What is 7,094
400
George bought a car for $17,067. This price included a leather package for $1,248 and a heated seats for $269. What was the price of the car without these features?
What is $15,550
400
Write in base-ten numeral: eight hundred nine thousand, sixty-two
What is 809,062
400

When you check for reasonableness you have to_______________________

round

500
43,674 + 3,372=
What is 47,046
500
18,143 - 5,923=
What is 12,220
500
Two years ago, Bob bought a used car that had 14,854 miles on the odometer. Last year, he drove 8,240 miles. This year, he drove 9,273 miles. How many miles does the odometer show now?
What is 32,367 miles
500
Use <,>,= 237,325 _____ 237,352
What is <
500

When rounded to the nearest hundred 1,981 rounds to ______________________

2,000

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