{ Math Review Unit 2 Miss Bowen 4 th Grade Math. 37+0=37 True or False?
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![Page 1: { Math Review Unit 2 Miss Bowen 4 th Grade Math. 37+0=37 True or False?](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697c0031a28abf838cc3771/html5/thumbnails/1.jpg)
{
Math ReviewUnit 2
Miss Bowen4th Grade Math
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37+0=37
True or False?
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37+0=37
True- The identity property tells us that any # plus
zero= that #
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99-0=98
True or False?
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99-0=98
False- Any # minus zero =that #, no more and
NO LESS
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17+13=13+17
True or False?
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17+13=13+17
True- The Commutative property tells us that
the order in which numbers are added does not change the sum.
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97+27=17+97
True or False?
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97+27=17+97
False- The same numbers were not added on
both sided of the equation.
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(15+5)+10=(10+5)+15
True or False?
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(15+5)+10=(10+5)+15
True- The associative property tells us that the
way in which numbers are grouped when added does not change the sum.
![Page 12: { Math Review Unit 2 Miss Bowen 4 th Grade Math. 37+0=37 True or False?](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697c0031a28abf838cc3771/html5/thumbnails/12.jpg)
37+ _____= 19+37
Fill in the missing number.
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37+ _____= 19+37
37+19=19+37
We must add the same numbers on both sides of the equation. We had 37 on both sides, but only 19 on the right. We must also add 19 to the left.
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100 more than 6,785
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100 more than 6,785=
6,785+100=6,885
“More than” tells us that we need to use addition.
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1,000 less than 14,998
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1,000 less than 14,998
14,998-1,000=13,998
“Less than” tells us that we need to use subtraction.
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10 less than 596
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10 less than 596
596-10=586
“Less than” tells us that we need to use subtraction.
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6,788; 7,788; _______; 9,788
Fill in the missing number.
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6,788; 7,788; _______; 9,788
1,000 more; 8,788
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999; 1,000; 1,001; _______; 1,003
Fill in the missing number.
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999; 1,000; 1,001; _______; 1,003
1 more; 1,002
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23,486; 23,476; _________; 23, 456
Fill in the missing number.
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23,486; 23,476; _________; 23, 456
10 less; 23, 466
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2,838+200=
Solve the equation
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2,838+200=
3,038
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303+98=
Solve the equation
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303+98=
401
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1,620+804=
Solve the equation
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1,620+804=
2,424
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37+16=
Solve the equation
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37+16=
53
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5,330+999=
Solve the equation
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5,330+999=
6,329
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6,561-272=
Solve the equation
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6,561-272=
6,289
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3,811-428=
Solve the equation
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3,811-428=
3,383
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7,785-1,494=
Solve the equation
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7,785-1,494=
6,291
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77,000-31,470=
Solve the equation
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77,000-31,470=
45,530
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660,000-83,259=
Solve the equation
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660,000-83,259=
576,741
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There are 12,465 fans attending the local football game this week. Last week, 16,038 fans came out for the game. How many more fans attended last week’s game than this week’s game?
Word Problems
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Understand12,465 fans this week16,038 fans last week
Plan How many more= subtraction (-)16, 038-12,465=
Solve 16, 038-12,465= 3573
Check Does 3,573+12,465=16,038?
Yes- our answer is correct.
There are 12,465 fans attending the local football game this week. Last week, 16,038 fans came out for the game. How many more fans attended last week’s game than this week’s game?
![Page 48: { Math Review Unit 2 Miss Bowen 4 th Grade Math. 37+0=37 True or False?](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697c0031a28abf838cc3771/html5/thumbnails/48.jpg)
Riley ran 1,025 meters at the track meet. Elizabeth ran 1,280 meters. How many more meters did Elizabeth run than Riley?
Word Problems
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UnderstandRiley- 1,025 mElizabeth- 1,280 m
Plan How many more= subtraction (-)1,280-1,025=
Solve 1,280-1,025= 255
Check Does 1,025+255=1,280?
Yes- our answer is correct.
Riley ran 1,025 meters at the track meet. Elizabeth ran 1,280 meters. How many more meters did Elizabeth run than Riley?
![Page 50: { Math Review Unit 2 Miss Bowen 4 th Grade Math. 37+0=37 True or False?](https://reader035.fdocuments.us/reader035/viewer/2022062322/5697c0031a28abf838cc3771/html5/thumbnails/50.jpg)
Betty’s Bakery sells 2,012 muffins each week. They also sell 5,025 cookies and 416 cakes each week. What is the total number of baked goods sold at the bakery each week?
Word Problems
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Understand2,102 muffins5,025 cookies416 cakes
Plan Total number= addition (+)2,102+5,025+416=?
Solve 2,102+5,025+416=7,543
Check Does 7,543-2,102-5,025-416=0?
Yes- our answer is correct. Betty’s Bakery sells 2,012 muffins each week. They also sell 5,025 cookies and 416 cakes each week. What is the total number of baked good sold at the bakery each week?
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Madelyn and her mother baked 48 cookies. She took 24 cookies to school and her brother ate some too. They now have 18 cookies. How many cookies did Madelyn’s brother eat?
Word Problems
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Understand
48 cookies bakedTook 24 to school
Now 18 How many did her brother take?
Plan Took= subtraction (-)Brother takes= subtraction48-24-18=________
Solve 48-24=2424-18=6Her brother took 6 cookies.
Check Does 18+6+24= the original # of cookies (48)?Yes- our answer is correct.
Madelyn and her mother baked 48 cookies. She took 24 cookies to school and her brother ate some too. They now have 18 cookies. How many cookies did Madelyn’s brother eat?
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Hannah’s choir group is selling coupon books for charity. Hannah sold 23 books and her friend Meghan sold 31. They have 6 books left to sell. How many total books did the two girls have to sell?
Word Problems
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Understand
Hannah sold 23Meghan sold 316 left
Plan Total number= addition (+)23+31+6=___________
Solve 23+31=5454+6=6060 is the total number of books that the girls must sell.
Check Does 60-6-31-23=0?
Yes- our answer is correct.
Hannah’s choir group is selling coupon books for charity. Hannah sold 23 books and her friend Meghan sold 31. They have 6 books left to sell. How many total books did the two girls have to sell?
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Estimate the sum or difference by rounding each number to the nearest tens.
Keith owns 8,749 books and Mike owns 5,756 books. About how many books do they have together?
Word Problems
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UnderstandMike 5,756 BooksKeith 8,749 Books
Plan Together= addition (+)Rounding to the nearest tens
Solve 5,756 5,7608,749 8,7505,760+8,750= 14,510
Check Is the true answer within 10?5,756+8,749=14,505Yes, our answer is correct.
Estimate the sum or difference by rounding each number to the nearest tens. Keith owns 8,749 books and Mike owns 5,756 books. About how many books do they have together?
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Estimate the sum or difference by rounding each number to the nearest hundreds.
Mike decided to drive across America. He drove 8,618 miles the first week, and 3,272 miles the second week. About how many miles did Mike drive in total?
Word Problems
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Understand8,618 Miles (Week 1)3, 272 Miles (Week 2)
Plan In total= addition (+)Rounding to the nearest hundreds
Solve 8,6188,6003,272 3,3008,600+3,300= 11,900
Check Is the true answer within 100?8,618+3,272=11,890
Yes- our answer is correct.
Estimate the sum or difference by rounding each number to the nearest hundreds. Mike decided to drive across America. He drove 8,618 miles the first week, and 3,272 miles the second week. About how many miles did Mike drive in total?