5,917 + 9,352
What is 15,269?
19,516 - 2,921
A reasonable estimate for 18,801 + 61,290
What is 80,000 ?
In a school there are 458 boys and 524 girls. Find the number of students in this school.
What is 982 students ?
It was the Crazy Sales Week at the department store. Any item that is $2,000 or more will get an instant discount of $200. People buying two pieces of clothing items gets $15 off the second item.
Josh wants to buy a TV that costs $2,380 and a printer that costs $259. How much does he need to pay?
What is $2,439 ?
52,110 + 16,209
What is 68,319?
48,291 - 24,181
What is 24,110 ?
A reasonable estimate for 675,314 - 324,932
What is 400,000 or360,000 ?
Cathy needs at least 2,000 points to go to Level Two in a video game. She has only 1,254 points in Level One. How many more points does she need to qualify for Level Two?
What is 746 more points?
Severyn’s family drives to the Grand Canyon for vacation. The drive is a total of 1,529 miles. The first day they drove 539 miles. The second day they drove another 472 miles.
How many miles do they have left to drive after the second day?
What is 518 miles left ?
421,482 + 72,618
What is 494,100?
618,025 - 74,391
What is 543,634 ?
The first bus had 196 passengers and the second bus had 107 passengers. There are about ________ passengers into total.
What is 300 passengers ?
Lena and Hunter lead fundraisers to raise money for their school. Together, they raise $3,718. Hunter raises $1,291.
How much money does Lena raise?
What is $2,427 ?
The Spanish Club is selling gift cards over a three-week period to raise money for a trip to Mexico. During the first week they sold 3,701 gift cards. During the second week they sold 1,889 fewer gift cards than the first week. During third week they sold 273 more gift cards than the second week.
How many gift cards did they sell each week?
What is ...
Week 1 = 3,701 gift cards
Week 2 = 1,812 gift cards
Week 3 = 2,085 gift cards
87,903,611 + 62,409,579
What is 150,313,190 ?
19,075,332 - 526,448
What is 18,548,884 ?
On a sunny afternoon, an ice cream parlour sold 547 scoops of vanilla ice-cream and 381 scoops of chocolate ice-cream. The parlour sold about ________ scoops altogether.
What is about 900 scoops ?
Mark’s school collects 53,511 cans of food for a food drive. They give 21,200 cans to a nearby food bank.
How many cans of food does the school still have?
What is 32,311 ?
Joseph’s family is buying a car. They are looking at three different cars. Car A is $16,001. Car B is $3,540 more than Car A. Car C is $1,275 less than Car B.
What is the cost of Car C?
What is $18,266 ?
Use partial sums to add:
213,418 + 16,953
8 + 3 = 11
10 + 50 = 60
400 + 900 = 1,300
3,000 + 6,000 = 9,000
10,000 + 10,000 = 20,000
200,000 + 0 = 200,000
11 + 60 +1,300 + 9,000 + 20,000 + 200,000 = 230,371
Use decomposition by place value to subtract:
18,163 - 16,201
18,163 - 10,000 = 8,163
8,163 - 6,000 = 2,163
2,163 - 200 = 1,963
1,963 - 1 = 1,962
Francis feeds his 438 chickens and 89 rabbits every day. Last week, another 129 chicks hatched. This week, Francis will feed about _____ chickens.
What is 500 or 570 chickens ?
A librarian is busy organizing a new shipment of books. There are three boxes filled with fiction books and two boxes filled with reference books that were just delivered. If each box is filled with 120 books, how many fiction books are there?
What is 360 fiction books ?
Kayla needs rhinestones to make dance costumes for the recital. The blue costume needs 2,968 rhinestones. The pink costume needs 612 more rhinestones than the blue costume. The orange costume needs 1,173 fewer rhinestones than the pink costume.
How many rhinestones does Kayla need in all?
What is 8,955 rhinestones ?