Unit 1 Review

Vocabulary

100

What is the answer to an addition equation? 

Sum

200

What is the answer to a subtraction equation?

Difference

300

What is it called when a number is added to another number? (example: 3,957 + 4,218)

Addend

400

The value of a number based on its position. (example: 7 in 3,782 = 700. 

Place value

500

Mathematical equation in which one operation undoes the other (example: addition and subtraction) 

Inverse Operations 

Rounding

100

Round to the nearest hundred: 828

800

200

Round to the nearest thousand: 3,521

4,000

300

Round to the nearest ten thousand: 26,728

30,000

400

Round to the nearest hundred thousand: 149,999

100,000

500

Round to the nearest hundred thousand: 250,183

300,000

Comparing

100

Which is the greater number? 45,862 or 45,682

45,862

200

Which is the greater number? 102,345 or 102,435

102,435

300

Which is the greater number? 96,989 or 96,998

96,998

400

Which is the greater number? 726,036 or 726,037

726,037

500

Which is the greater number? 79,862 or 79,826

79,862

Various Forms

100

Write two hundred sixty five in STANDARD FORM

265

200

Write five hundred eighty three thousand four hundred ninety six in STANDARD FORM

583,496

300

Write 62,010 in word form

sixty-two thousand ten 

400

Write 72,534 in expanded form

70,000 + 2,000 + 500 + 30 + 4

500

Write 587,423 in word form 

five hundred eighty-seven thousand four hundred twenty-three 

Word Problems

100

There were 3,982 people at the soccer game on Thursday. There were 1,886 more people at the soccer game on Saturday. How many people in all attended both games?

9,850 people

200

One machine makes 125,500 small paper clips in one day. Another machine makes 83,650 large paper clips in one day. How many fewer large paper clips than small paper clips are made in one day? 

41,850 fewer large paper clips

300

Marnie scored 57,301 points in the first round of a game at Knoebels. She scored 32,964 fewer points the second round. How many points did Marnie score in the two rounds?

81,638 total points

400

There are 241 ducks on the farm. There are 120 fewer chickens than ducks. How many chickens are there? If some chickens are being help by customers, and 82 chickens are left, how many chickens are being held? 

There are 121 chickens on the farm. 

There are 39 chickens being held by customers. 

500

Write an equation using "x" and then solve the equation. Mr. Smith has 642 chickens and 46 cows. All the chickens were either white, red, or chestnut. 575 of the chickens were white. 6 chickens were chestnut. How many chickens were red? 

x= number of red chickens

575+6+x= 642

x= 642-757-6

x= 61

61 chickens were red.