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Addition
Subtraction
Place-Value
Multiplcation
Division
100

398 + 461 = 

859

100

683 - 295 = 

388

100

Write 8,547 in expanded form

8,000 + 500 + 40 + 7

100

Round 287 to the nearest hundred and estimate the product for 287 x 6

300 x 6 = 1,800

100

Find the quotients 

45/5 

450/5

4,500/5 

45/5 = 9

450/5 = 90

4,500/5 = 900

200

38,911 + 45,681= 

84,592

200

215,714 - 176,313 = 

39,401

200

Mia says in 5,555, all the digits have the same value. Is Mia correct? Explain.

No, Mia is incorrect. All of the 5's in 5,555 have different values because they are in different place-values. 5,50,500,5000


200
Use an area model to find the product for 21 x 45  

21 becomes 20 and 1

45 becomes 40 and 5

20 x 40=800 

20 x 5= 100

40 x 1= 40

1 x 5 = 5

800 + 100 + 40 + 5 = 945

200

Estimate the quotient

192 / 5

200 / 5 = 400

300

Round each number to the nearest thousands place and estimate the sum.

14,632 + 11,278 

15,000 + 11,000 = 26,000

300

30,900 - 22,855 = 

8,045

300

40,000 + 2,000 + 600 + 6 ⃝ 40,000 + 3,000 + 10

42,606 < 43,010


300

Find the products for... 

30 x 20 

30 x 30

30 x 40

30 x 20 = 600 

30 x 30 = 900 

30 x 40 = 1,200 

300

55 baseball cards 4 cards on each page. How many cards are on the last page?

55 / 4 = 13 r 3 

There are 3 cards on the last page

400

True or false, the sum of 78,487 + 7,998 is 86,488

False, the correct sum is 86,485

400

Round each number to the nearest ten-thousand and estimate the difference. 

87,633 - 15,899 

90,000 - 20,000 = 70,000

400

Which group of numbers shows the values of the 4s in 44,492? 

𝖠 40,000; 4,000; 400 

𝖡 40,000; 400; 40

 𝖢 4,000; 400; 4 

𝖣 400; 40; 4

A: 40,000; 4,000; 400

400

Use any method to solve for...

79 x 43 

3,397

400

Use partial quotients to divide

450 / 3

3 x 100 = 300 

450-300=150

3 x 50 = 150

150-150= 0 

100 + 50 = 150

500

Maria added 45,273 and 35,687 and got a sum of 70,960. Is Maria’s answer correct? If she isn't, what is the correct sum?

Maria isn't correct. The correct sum is 80,960. 

500

Nevada has a land area of 109,781 square miles. Colorado has a land area of 103,642 square miles. How much larger is Nevada's land area than Colorado?

Nevada has 6,139 square miles more of land area than Colorado. 

500

Write four numbers that round to 700,000 when rounded to the nearest hundred thousand.

check answers

500

Estimate to find the product 

28 x 18

30 x 20 = 600

500

Use any method to divide 5,865/5

1,173