Page 20 Math Page 20 Math ReviewReview

#1-3#1-3

#9-13#9-13

PLACE VALUE

1)1) A number that is used to show position A number that is used to show position is an is an

______________________.______________________.

2) Our place-value system is a ____________ 2) Our place-value system is a ____________ system. system.

3) 10,000,000 + 5,000 + 20 + 9 is the 3) 10,000,000 + 5,000 + 20 + 9 is the _____________________ for 10,005,029._____________________ for 10,005,029.

ordinal number

base-ten

expanded form

base-ten standard form

ordinal number expanded form

Write each number in three Write each number in three other ways.other ways.

#9, page 20 #9, page 20

56 million, 432 thousand56 million, 432 thousand• 56,432,00056,432,000

• Fifty-six million, four hundred Fifty-six million, four hundred thirty two thousandthirty two thousand

• 50,000,000 + 6,000,000 + 50,000,000 + 6,000,000 + 400,000 + 30,000 + 2,000400,000 + 30,000 + 2,000

Write each number in three Write each number in three other ways.other ways.

#10, page 20 #10, page 20

500,000,000 + 8,000 + 500,000,000 + 8,000 + 600 + 9600 + 9

• 500,008,609500,008,609• Five hundred million, eight Five hundred million, eight

thousand, six hundred ninethousand, six hundred nine• 500,000,000 + 8,000 + 600 + 9500,000,000 + 8,000 + 600 + 9

Write each number in three Write each number in three other ways.other ways.

#11, page 20 #11, page 20

20,000,000 + 300,000 + 20,000,000 + 300,000 + 4,000+ 1 4,000+ 1

• 20,304,00120,304,001• Twenty million, three hundred Twenty million, three hundred

four thousand, onefour thousand, one• 20 million, 304 thousand, 1 20 million, 304 thousand, 1

Write each number in three Write each number in three other ways.other ways.

#12, page 20 #12, page 20

Seven hundred fifty-Seven hundred fifty-six million, six six million, six

• 756,000,006756,000,006• 756 million, six756 million, six

• 700,000,000 + 50,000,000 700,000,000 + 50,000,000 + 6,000,000 + 6 + 6,000,000 + 6

Write each number in three Write each number in three other ways.other ways.

#13, page 20 #13, page 20

Three hundred nine Three hundred nine thousand, fifty-one thousand, fifty-one

• 309,051309,051• 309 thousand, 51309 thousand, 51

• 300,000 + 9,000 + 50 + 1 300,000 + 9,000 + 50 + 1