Addition
Subtraction
Estimate
Vocabulary
Multiple Steps
100

23,582 + 4,091

27,673

100

4,103-361

3,742

100

Round 741 to the tens

740

100

When I use ___________, I am finding the sum.

addition

100

My friends and I have a total of 106 dogs. I have 49. My friend, Sally, has 12. How many dogs does Billy have?

45

200

14,935 + 2,148

17,083

200

2,089 - 215

1,874

200

Round 76,892 and 42,319 to the greatest place value.

80,000 and 40,000

200

I find the _______ when I am using subtraction.

difference

200

The Blue School has 235 fourth-graders. The Red School has 549 fourth-graders. How many fourth-graders are at The Yellow School if there are a total of 1,100 students from all three schools?

316

300

The fourth grade classes have collected cans of food for the annual food drive for the last 3 years. They collected 1,572 cans 2 years ago. Last year they collected 1,406, and this year they collected 1,889. What is the total number of cans of food the fourth grade classes have collected?

4,867

300

Two teams play soccer on Friday and Saturday. On Friday, 30,190 went to the game. On Saturday, 41,309 people went to the game. How many more people went to the game on Saturday than on Friday?

11,119

300

Two families went on a vacation. One family paid $493 and the second family paid $621. Estimate the total cost of both vacations.

$1,100

300

Sometimes, I _______ things when I subtract. I am finding the difference between them.

compare

300

There was a total of 159,601 tools in the science department. There were 37,123 beakers. There were 5,348 more test tubes than beakers. How many other tools were in the science department?

80,007

400

In 2018, 47,672 people attended a football game at Harmony Stadium. In 2019, 5,723 more people attended a football game than in 2018 at Harmony Stadium. How many people attended the football game both years?

101,067

400

There were 570,325 dolls at a doll store. Then 419,997 dolls were sold. How many dolls were not sold?

150,328

400

I went on a Disney Vacation! I spent $1,842 on a hotel. I spent $1,296 on a food. I spent $734 on park tickets, and I spent $2,203 on plane tickets. If each number is rounded to the nearest hundred, what is the difference in the cost of the plane tickets and how much the I spent on food?

$900

400

I ______ when I estimate. 

round

400

The total population of Harmony county is 95,000 people. All the people in this county live in either Ricksdale, Quick City, or Rover. If the population of Scottsdale is 48,310 and the population of Rapid City is 34,725, what is the population of Dover?

10,965

500

There were 1,031 penguins at a zoo. The zookeeper added 593 penguins the next day. The following week, the zookeeper added 767 penguins. How many penguins are now at the zoo?

2,391

500

An archaeologist is digging at an Archaic Indian burial site. She finds 256 skeletons, but 197 of them are missing their femur bone. How many skeletons have the femur bone?

59

500

Lizzie has a rock collection. She has 291 blue rocks and 868 crystal rocks. Sara adds 300 and 900 to estimate the number of rocks in her collection. Is Sara’s estimate more or less than the actual number of rocks?

More

500

I find the sum when I combine two _______ together.

addends

500

All the cars in Dallas total 938,003. There are 215,006 in North Dallas, and 5,000 less than that in South Dallas. If there are 359,132 in East Dallas, how many cars are in West Dallas?

153,859