Everyday Math Grade 4 Lesson 2.7 Addition of Multi-digit
Numbers Copyright 2010 Kelly Mott
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Lesson Components: Part 1: Math Boxes 2.7 Page 41Math Boxes 2.7
Page 41 Part 2: ReviewReview Part 3: PP Regroup the OnesPP Regroup
the Ones Part 4: PP Regroup the TensPP Regroup the Tens Part 5: PP
Regroup More than OncePP Regroup More than Once Part 6: PP
Regrouping 4 DigitsPP Regrouping 4 Digits Part 7: Math Journal
39Math Journal 39 Part 8: Math Journal 40Math Journal 40 Copyright
2010 Kelly Mott
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Math Boxes Lesson 2.7 Page 41
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Copyright 2010 Kelly Mott Math Box 1:
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Copyright 2010 Kelly Mott Math Box 2:
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Copyright 2010 Kelly Mott Math Box 3:
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Copyright 2010 Kelly Mott Math Box 4:
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Copyright 2010 Kelly Mott Math Box 5:
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Copyright 2010 Kelly Mott REVIEW
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Copyright 2010 Kelly Mott Name Collection Box 24 1
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Copyright 2010 Kelly Mott Place Value Helpful Hint: You can
think of each period as a family.
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What number is in the tens place? ____________________________
hundred thousands place? ________________ ten millions place?
______________________ thousands place? _______________________
Place Value Practice 1 874693521 2
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What number is in the hundreds place? ________________________
hundred millions place? __________________ ten thousands place?
____________________ millions place? _________________________
Place Value Practice 2 874693521 3
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Value of a Number Practice 1 Problem #1: 290, 763, 891 What is
the 8 worth? ___________________________ Problem#2: 856, 742, 121
What is the 7 worth? ___________________________ Problem#3: 260,
158, 403 What is the 6 worth? ___________________________ Copyright
2010 Kelly Mott 4
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Expanded Form Practice 1 Problem 1: 116,350,601
__________________ + __________________ + __________________
Problem 2: 800,935,022 __________________ + __________________ +
__________________ + __________________ Copyright 2010 Kelly Mott
5
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1.What is the maximum?
_________________________________________________________ 2.What is
the minimum?
_________________________________________________________ 3. What
is the range (maximum minimum)?
_________________________________________________________ 4. What
is the mode (most frequent) ?
_________________________________________________________ 5. What
is the median (middle number)?
_________________________________________________________ Copyright
2010 Kelly Mott LOOK AT THE DATA: 3 5 6 6 9 9 11 11 11 6
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Copyright 2010 Kelly Mott THREE DIGIT ADDITION REGROUP THE
ONES
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1.When we add, we start with the ones column. 2.8 + 3 = 11 3.We
can think of 11 as: 4.We can also think of 11 Understanding
Regrouping the Ones 463 + 118 __________________ Copyright 2010
Kelly Mott 7
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1.Lets look at another problem. 2.Start with the ones. 3.9 + 4
= 13 4.We can think of 13 as: 5.We can also think of 13
Understanding Regrouping the Ones 224 + 219 __________________
Copyright 2010 Kelly Mott 8
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1.Lets look at one more problem. 2.Start with the ones. 3.8 + 9
= 17 4.We can think of 17 as: 5.We can also think of 17
Understanding Regrouping the Ones 448 + 249 __________________
Copyright 2010 Kelly Mott 9
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1.When we add, we start with the ones column. 2.6 + 5 = 11 3.We
can think of 11 as: 4.We can also think of 11 as: Understanding
Regrouping the Ones 236 + 145 __________________ Copyright 2010
Kelly Mott 10
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Heres a quick video to reinforce what we just learned:
http://streaming.discoveryeducation.com/braingame
s/iknowthat/Video/VideoPlayer.htm?VID=../Dojo/Vid
eo/DoubleDigitAdditionWithRenaming.flv&SWF=Doj
o&COL=#2c143e&W=400&H=420 Understanding Regrouping
Copyright 2010 Kelly Mott
HOMEWORK SUPPLEMENTAL: ORANGE MATH STEPS PAGES 39-40 Copyright
20010Kelly Mott
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Copyright 2010 Kelly Mott
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THREE DIGIT ADDITION REGROUP THE TENS
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1.When we add, we start with the ones column. 2.4 + 1 = 5 ones
3.We dont have to regroup because 5 is a SINGLE DIGIT! 4.Then add
the tens. 5.6 + 7 = 13 tens 6.We can think of 13 tens as: 7.We can
also think of 13 tens as: Understanding Regrouping the Tens 261 +
174 __________________ Copyright 2010 Kelly Mott 16
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1.When we add, we start with the ones column. 2.2 + 1 = 3 ones
3.We dont have to regroup because 3 is a SINGLE DIGIT! 4.Then add
the tens. 5.7 + 8 = 15 tens 6.We can think of 15 tens as: 7.We can
also think of 15 tens as: Understanding Regrouping the Tens 372 +
281 __________________ Copyright 2010 Kelly Mott 17
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1.When we add, we start with the ones column. 2.2 + 5 = 7 ones
3.We dont have to regroup because 7 is a SINGLE DIGIT! 4.Then add
the tens. 5.9 + 3 = 12 tens 6.We can think of 12 tens as: 7.We can
also think of 12 tens as: Understanding Regrouping the Tens 532 +
195 __________________ Copyright 2010 Kelly Mott 18
HOMEWORK SUPPLEMENTAL: ORANGE MATH STEPS PAGES 41-42 Copyright
2010 Kelly Mott
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THREE DIGIT ADDITION REGROUP MORE THAN ONCE
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1.8 + 3 = 11 ones 2.We can think of 11 ones as: 3.We can also
think of 11 ones as: 4.1 + 6 + 5 = 12 tens 5.We can think of 12
tens as: 6.We can also think of 12 tens as: Understanding
Regrouping More Than Once 268 + 153 __________________ Copyright
2010 Kelly Mott 24
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1.8 + 3 = 10 ones 2.We can think of 10 ones as: 3.We can also
think of 10 ones as: 4.1 + 8 + 5 = 14 tens 5.We can think of 14
tens as: 6.We can also think of 14 tens as: Understanding
Regrouping More Than Once 388 + 152 __________________ Copyright
2010 Kelly Mott 25
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Does this make sense? Copyright 2010 Kelly Mott
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Regrouping More than Once 437 + 396 __________________ 275 +
478 __________________ A.B. Copyright 2010 Kelly Mott 26
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Regrouping More than Once 283 + 199 __________________ 569 +
364 __________________ C.D. Copyright 2010 Kelly Mott 27
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Regrouping More than Once 468 + 485 __________________ 189 +
436 __________________ E.F. Copyright 2010 Kelly Mott 28
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Regrouping More than Once 698 + 257 __________________ 279 +
268 __________________ G.H. Copyright 2010 Kelly Mott 29
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Does this make sense? Copyright 2010 Kelly Mott
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HOMEWORK SUPPLEMENTAL: ORANGE MATH STEPS PAGES 43-44 Copyright
20010Kelly Mott
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Copyright 2010 Kelly Mott
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FOUR DIGIT ADDITION REGROUP MORE THAN ONCE
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Four Digit Addition A. 4,896 1,524 Copyright 2010 Kelly Mott B.
1,383 2,647 + + 30
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Four Digit Addition C. 2,383 1,642 Copyright 2010 Kelly Mott D.
5,978 2,632 + + 31
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Four Digit Addition C. 2,383 1,642 Copyright 2010 Kelly Mott D.
5,978 2,632 + + 32
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HOMEWORK SUPPLEMENTAL: ORANGE MATH STEPS PAGES 57-58 Copyright
20010Kelly Mott
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HOMEWORK Everyday Math Journal Page: 39 Copyright 20010Kelly
Mott
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HOMEWORK Everyday Math Journal Page: 40 Copyright 20010Kelly
Mott