Add It Up
674 + 369=
1,043
8,715 - 5, 923=
2,792
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?
6,107 tires
The sum of zero and any number is always the same number.
Identity Property
Round 25,196 to the nearest thousand
What is 25,000
6,000 + 3,173=
9,173
6000-2,173=
3,827
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?
757 points
To change the value of a number to make it easier to add or subtract
500 + 600 = 1,100
5,215 + 3,107=
8,322
9,534 - 4,085=
5,449
There are 11,500 seats in the basketball arena. For one game, 9,465 seats were filled. How many seats were empty?
2,035 seats were empty
9,000 + 3,000 = 12,000
43,674 + 3,372=
47,046
18,143 - 5,923=
12,220
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?
32,367 miles
An answer close to the exact answer
Estimate
800 - 600 = 200
2,869 + 25,946=
28,815
The difference in 8,125 and 15,219
7,094
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?
$15,550
You can add numbers in any way and the sum will be the same
9,000 - 3,000 = 6,000