Topic 2

Review

100

Write the numeral 432, 098 in word form.

four hundred thirty-two thousand, ninety-eight

200

Show this number in expanded form. 432,673

400,000 + 30,000 + 2,000 + 600 + 70 + 3 4x100,000 + 3x10,000 + 2x1,000 + 6x100 + 7x10 + 3x1 number line base ten blocks

300

Order these numbers from least to greatest. 34,340 ; 34,430 ; 34,034

34,043 ; 34,340 ; 34,430

Add or Subtract

100

Riggs has 534 songs on his iPod and his sister, Mary Kate, has 629 songs on her iPod. How many songs would they have if they combined them?

534 + 629 = 1,163 Riggs and Mary Kate will have 1,163 songs if they combine their songs.

200

Brooks has $4,300 in his bank account. He decides to go on a trip that will cost $1,972. How much money will he have left in his account?

4,300 - 1,972 = 2,328 Brooks will have $2,328 left in his account.

300

Michelle ran off 200,000 LifeKraze flyers. She handed out 33,972 on Monday and 29,431 on Tuesday. How many flyers does she have left?

33,972 + 29,431 = 63,403 200,000 - 63,403 = 136,597 Michelle has 136,597 flyers left over.

Estimate

100

Estimate. 3,865 + 2,544

3,870 + 2,540 = 6,410 3,900 + 2,500 = 6,400

200

Estimate. 53,076 - 2,884

53,080 - 2,880 = 50,200 53,100 - 2,900 = 50,200

300

Estimate and solve exactly. 40,902 - 3,433

40,900 - 3,400 = 37,500 40,902 - 3,433 = 37,469

Mystery

100

Walker traveled 4,050 miles to visit his grandmother. He then traveled another 792 miles to visit his best friend. How many miles did he travel in all?

4,050 + 792 = 4,842

200

Mr. Warren was born in 1958. We are in the year 2013. How old is Mr. Warren?

2013 - 1958 = 55

300

Ms. Warren's family is going on a vacation that will cost $15,000. They save $4,900 in January. They save $5,214 in February. And they save $2,945 in March. Have they saved enough money for their trip? If not, how much more money do they need to save?

4,900 + 5,214 + 2,945 = 13,059 15,000 - 13,059 = 1,941 The need to save 1,941 more dollars.