Add It Up
3,674 + 4,369=
8,043
8,715 - 5,923=
What is 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
What does sum mean?
The answer to an addition problem
Round 25,196 to the nearest thousand
25,000
Without using scratch paper, 6,000 + 3,173=
9,173
Without using scratch paper: 5,173-3,000
2,173
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
What does difference mean?
The answer to a subtraction problem.
Use <,>,= 593,237,325_____ 593,237,352
<
4,450+ 765+3,107=
8,322
9,534 - 4,085 - 944
4,505
A basketball arena has to have at least 45,000 people attend in their season to be able to stay open. In thee first half of their season, they had a total of 21,594 people come. How many people need to come the last half of their season in order for them to stay open? Do you think they will make it or not? Why?
23,406 people need to come. As long as your opinion is based on the problem, it's good :)
What is standard form?
Writing numbers with digits (the regular way we think of numbers)
31x5
155
43,674 + 3,372
What is the sum of the tens and ones digit in the answer?
10 (The answer is 47,046, so 4+6=10)
18,143 - 5,923
What digit is in the thousands, hundreds, and tens place of the answer?
2 (answer is 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? What number does the digit in the hundreds place represent?
32,367 miles
What is expanded form?
A way to write a number that shows the sum of how much each digit is worth.
Use rounding to the nearest 10 to estimate the product of these 2 numbers:
29 x 21
30 x 20 = 600, so about 600
2,869 + 25,946
What is the value of the thousands place digit in the answer? How many times greater is it than the digit in the hundreds place?
8,000, 10x greater than in the hundreds place (answer was 28,815)
What is the difference between 8,125 and 15,219?What is the answer in expanded form?
7,094
7,000 + 90 + 4
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
What does approximate or estimate mean?
To be close to the actual amount, but not exact
36,245 and 26,190
Sum: 62,000