Vocab
Lesson 1–1
Lesson 1–1
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digit
expanded form
672 = 600 + 70 + 2
Lesson 1–1
Lesson 1–4
place value
round
thousands
hundreds
tens
ones
4
5
2
9
20
9
4,000 500
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Lesson 1–1
36
30
40
36 is closer to 40
Lesson 1–1
standard form
word form
3,491
six thousand,
four hundred ninety-nine
Ideas for Use
A way of writing a number as a sum that
shows the value of each digit.
Explain what expanded means in this
sentence: The balloon expanded as it filled
with air.
• Practice your penmanship! Write each word
in cursive.
Any symbol used to write whole numbers.
Write a three-digit number.
To change the value of a number to one that
is easier to work with.
The value given to a digit by its place in
a number.
Round is a word with multiple meanings.
Choose another meaning of round, and use it
in a sentence.
Write a number in which 6 is in the tens
place and in the hundreds place.
The form of a number that uses written
words.
The usual way of writing a number that
shows only its digits, no words.
Write the number 4,274 in word form.
What is another way to write a number?
Copyright © The McGraw-Hill Companies, Inc.
• During this school year, create a separate
stack of cards for key math verbs such as
round. Understanding these verbs will help
you in your problem solving.