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Name Multi-Part Lesson
PART C
Get ReadyMain IdeaI will make groups of tens and ones.
Vocabulary regroup
Review Vocabularyones
Tens and Ones
8-2
You can show a number as tens and ones. You can regroup 10 ones as 1 ten.
16 ones = 1 ten and 6 ones = 16
Use . Make groups of tens and ones. Write how many. 1.
C08-035A-112052
14 ones = 1 ten and
4 ones = 14
2.
C08-036A-112052 18 ones = ten and
ones =
3. 21 ones = tens and one =
4. 56 ones = tens and ones =
5.
How would you regroup 20 ones?
CheckCheckCheck
Put together 10 ones to make 1 ten.
together 10 ones to make 1 ten.
BA D
Chapter 8 • Lesson 2B three hundred forty-five 345
345_346_CH08_L2B_112051.indd 345 7/14/09 3:22:15 PM
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acmillan/M
cGraw-Hill, a division of The M
cGraw-Hill Com
panies, Inc.Practice
Use . Make groups of tens and ones. Write how many. 6.
C08-037A-112052 13 ones = ten and ones =
7.
C08-038A-112052 26 ones = tens and ones =
8.
C08-039A-112052 17 ones = ten and ones =
9. 35 ones = tens and ones =
10. 47 ones = tens and ones =
11. 67 ones = tens and ones =
12. 29 ones = tens and ones =
13. Explain how to regroup 51 ones as tens and ones.
Math at Home Activity: Ask your child to regroup 83 as tens and ones.346 three hundred forty-six
345_346_CH08_L2B_112051.indd 346 7/14/09 2:21:20 PM