Show:
Place Value
Addition
Subtraction
Rounding
Word Problems
100

What is the underlined digit’s place and value.

892

Hundreds

800

100

 1,000 more than 245  

1,245

100

What is the definition of difference?

the answer to a subtraction problem

100

Round to the nearest ten

868

870

100

A school bought music equipment for $5,009. The drums cost $2,815. How much money was spent on the other music equipment?

5,009 - 2,815 = 2,194

200

Write the number in standard form

4,000 + 900 + 80 + 2  

4,982

200

What property is this?


9 + (1 + 5) = (9 + 1) + 5

Associative Property

200

What can we do to check a subtraction problem?

Inverse Operation

Estimating

200

Round to the greatest place value

8,694

9,000

200
When Ms. Park solved 785 - 408, she got 377. To check her answer, she added 408 and 785. What did she do wrong?

She needs to add 377 and 408


300

Use the symbols to compare


9,856 _____ 9,748

>

300

Round each addend to its greatest place value:

635 + 523 =

________ + ________ = 

600 + 200 = 1,100


300

4453-2474=?

1979

300

Round to the nearest ten and nearest hundred. What is the rounded number that does not belong?

456

400  ,  460  ,  500

400

300

There are 549 yellow cups. There are 162 green cups. Write a number sentence to find about how many more yellow cups there are.

500 - 200 = 300 more yellow cups

400

What place value is the number rounded to?

5,283 rounds to 5,300

hundreds


400

What is the definition of regroup?

means to rename a number using place value.

400

5009-426 = ?

4583

400

 7,421 + 2,798 ; hundreds

7,400 + 2,800 = 10,200

400

In which month were fewer raffle tickets sold? How many fewer?

January: 5,345

March: 2,982

March - 2,363 fewer

500

Write the number in expanded form and word form.

6,503

6,000 + 500 + 3

Six thousand five hundred and three

500

A small horse weighs 852 pounds. A bigger horse weighs 1,625 pounds. How much do both horses weigh together?

183 + 1,625 = 1,808

500

A student solved this problem and got this answer. What did the student do wrong?

What is the correct answer?

1821 - 365 = 1566

1456

They forgot to regroup the hundreds and tens

500

To the nearest hundred, estimate the sum. (ROUND FIRST, then add)

1,478 + 9,621

1,500 + 9,600 = 11,100

500

Ms. Park went on a family trip from Seoul to Busan. His family drove 658 miles from Seoul to Busan, and then back again. She estimated this distance to the nearest hundred miles and the nearest ten miles. What is the sum of the estimates?

Tens: 660 + 660 = 1,320

Hundreds: 700 + 700 = 1,400

Sum: 2,720 miles