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Unit 3 ReviewMiss Bowen4th Grade Math
Fact FamiliesUse the numbers below to create a fact family
8, 7, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact FamiliesUse the numbers below to create a fact family
8, 7, 56
1. 8 x 7= 56
2. 7 x 8=56
3. 56 / 7 = 8
4. 56 / 8 = 7
Fact FamiliesUse the numbers below to create a fact family
3, 9, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact FamiliesUse the numbers below to create a fact family
3, 9, 27
1. 3 x 9=27
2. 9 x 3=27
3. 27/3=9
4. 27/9 =3
Fact FamiliesUse the numbers below to create a fact family
10, 2, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact FamiliesUse the numbers below to create a fact family
10, 2, 20
1. 10 x 2= 20
2. 2 x 10= 20
3. 20 / 2= 10
4. 20 / 10= 2
Fact FamiliesUse the numbers below to create a fact family
6, 7, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact FamiliesUse the numbers below to create a fact family
6, 7, 42
1. 6 x 7= 42
2. 7 x 6= 42
3. 42 / 7 = 6
4. 42 / 6= 7
Fact FamiliesUse the numbers below to create a fact family
8, 11, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact FamiliesUse the numbers below to create a fact family
8, 11, 88
1. 11 x 8= 88
2. 8 x 11= 88
3. 88 / 8= 11
4. 88 / 11= 8
Fact FamiliesUse the numbers below to create a fact family
4, 9, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact FamiliesUse the numbers below to create a fact family
4, 9, 36
1. 4 x9=36
2. 9x4 =36
3. 36/9=4
4. 36/4=9
Fact FamiliesUse the numbers below to create a fact family
3, 8, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact FamiliesUse the numbers below to create a fact family
3, 8, 24
1. 3x8=24
2. 8x3=24
3. 24/8=3
4. 24/3=8
DivisionUse repeated subtraction to divide
14/2=?
DivisionUse repeated subtraction to divide
14/2=?
14-2=12-2=10-2=8-2=6-2=4-2=2-2=0
7 subtraction signs
14/2=7
DivisionUse repeated subtraction to divide
72/9=?
DivisionUse repeated subtraction to divide
72/9=?
72-9=63-9=54-9=45-9=36-9=27-9=18-9=9-9=0
8 subtraction signs
72/9=8
DivisionUse repeated subtraction to divide
28/7=?
DivisionUse repeated subtraction to divide
28/7=?
28-7=21-7=14-7=7-7=0
4 subtraction signs
28/7=4
DivisionUse repeated subtraction to divide
36/6=?
DivisionUse repeated subtraction to divide
36/6=?
36-6=30-6=24-6=18-6=12-6=6-6=0
6 subtraction signs
36/6=6
DivisionUse repeated subtraction to divide
16/4=?
DivisionUse repeated subtraction to divide
16/4=?
16-4=12-4=8-4=4-4=0
4 subtraction signs
16/4=4
DivisionUse repeated subtraction to divide
42/7=?
DivisionUse repeated subtraction to divide
42/7=?
42-7=35-7=28-7=21-7=14-7=7-7=0
6 subtraction signs
42/7=6
DivisionUse repeated subtraction to divide
8/2=?
DivisionUse repeated subtraction to divide
8/2=?
8-2=6-2=4-2=2-2=0
4 subtraction signs
8/2=4
Properties9/1=?
Properties9/1=?
9
Ones in division Whenever you divide by 1, the quotient is always the divided.
Properties33 x 1=?
Properties33 x 1=?
33
Identity property when a factor is multiplied by 1, the product is always that factor.
Properties5/____= 5
Properties5/____= 5
1
Ones in division Whenever you divide by 1, the quotient is always the divided.
Properties9x 8= 8x _____
Properties3 x 2 x 7=____
Properties3 x 2 x 7=____
3x 2= 6 x 7 = 42 or 7x 2= 14 x 3= 42
Associative property of multiplication the order of factors does not change the product
Properties9x 8= 8x _____
9
Commutative Property of Multiplication- the order of factors does not change the product.
Properties____ / 12=0
Properties____ / 12=0
O
Zeroes in division When you divide zero by any number, the quotient is always zero.
Properties4 x 2 x 7= 7 x 2 x____
Properties4 x 2 x 7= 7 x 2 x____
4
Associative property of multiplication the order of factors does not change the product
Properties4 x 0= _____
Properties4 x 0= _____
0
Zero Property of Multiplication- When a factor is multiplied by zero, the product is always zero.
MultiplesList the first five multiples
3
MultiplesList the first five multiples
3
3 x 0= 0
3 x 1= 3
3 x 2= 6
3 x 3= 9
3 x 4= 12
0,3,6,9,12
MultiplesList the first five multiples
7
MultiplesList the first five multiples
7
7 x 0= 0
7 x 1= 7
7 x 2= 14
7 x 3= 21
7x 4= 28
0, 7, 14, 21, 28
MultiplesList the first five multiples
4
MultiplesList the first five multiples
4
4 x 0= 0
4 x 1= 4
4 x 2= 8
4 x 3= 12
4 x 4= 16
0, 4, 8, 12, 16
MultiplesList the first five multiples
9
MultiplesList the first five multiples
9
9 x 0= 0
9 x 1= 9
9 x 2= 18
9 x 3= 27
9 x 4= 36
0, 9, 18, 27, 36
MultiplesList the first five multiples
11
MultiplesList the first five multiples
11
11 x 0= 0
11 x 1= 11
11 x 2= 22
11 x 3= 33
11 x 4= 44
0, 11, 22, 33, 44
FactorsUse number charts to find all factors
30
FactorsUse number charts to find all factors
30
1,30, 2, 15, 3, 10, 5, 6
FactorsUse number charts to find all factors
12
FactorsUse number charts to find all factors
12
1, 12, 2, 6, 3, 4
FactorsUse number charts to find all factors
42
FactorsUse number charts to find all factors
42
1, 42, 2, 21, 3, 14, 4, 6, 7
FactorsUse number charts to find all factors
27
FactorsUse number charts to find all factors
27
1, 27, 3, 9
FactorsUse number charts to find all factors
36
FactorsUse number charts to find all factors
36
1, 36, 2, 18, 3, 12, 6
Word ProblemsKevin can carry a basket 5 feet. Rachel
can carry it 3 feet further than Kevin. Daniel can carry the basket half the distance that Rachel can. Is it reasonable to say that they can carry it 15 feet with each person only taking one turn?
Word Problems Understand-
Kevin- 5 feet, Rachel- Kevin +3, Daniel- half of Rachel
More than 15?
Plan- feet carried in total- addition
Solve- Kevin 5Rachel (5+3) 8Daniel (8/2) + 4____________________17
17> 15
Yes it is reasonable
Word ProblemsJosh and Anthony have a lemonade
stand. They charge $1 for 2 cups of lemonade. They sell 14 cups each afternoon. Is it reasonable to say that Josh and Anthony earned more than $50 after 3 afternoons?
Word Problems Understand- $ 1 for 2 cups
14 cups each afternoon
3 afternoons> $50?
Plan- 14/2=S S x 3= N
N>$50?
Solve-
14/2= $7 $7 x 3= 21 21<50
$21 < $50 No, it is not reasonable to say that they will make more than $50
Word ProblemsJavier’s grandmother lives 120 miles
away. It takes 1 hours to travel 40 miles by train. If Javier leaves at 7 a.m., is it reasonable to say that he will arrive at his grandmother’s by 9 a.m.?
Word Problems Understand
grandmother= 120 miles away 1 hour for 40 miles Leaves at 7 a.m. there by 9 a.m.?
Plan 120/40= T 7+T= N N earlier than 9?
Solve 120- 40= 80-40=40-40= 0 (3) 7+3=10 a.m. 10 a.m. is not before 9 a.m.
It is not reasonable to say that they will be there before 9 a.m.
Word ProblemsBrittany wants to make cookies for the
whole fourth grade. One batch makes 12 cookies. There are 68 fourth graders. Is it reasonable to say that Brittany will need more than two batches of cookies?
Word Problems Understand
12 cookie per batch 68 students 2 batches enough?
Plan 12 x 2= N N>68?
Solve 12 x 2= 24 24< 68
It is not reasonable to say that 2 batches will make enough cookies for the 4th grade students.
Word ProblemsMissy earned three times as many
points as Jerry. Kim earned 9 point more than Jerry. Missy earned 21 points. How may points did Kim earn?
Word ProblemsUnderstand
Missy – Jerry x 3 (21)Kim - Jerry + 9
PlanJ x 3= 21J +9= K
Solve21/3 = 77+9= 16
Kim= 16 points
Word ProblemsJulie earned $25. This is 5 times more
than the amount Lisa earned. How much did Lisa earn?
Word ProblemsJulie earned $25. This is 5 times more
than the amount Lisa earned. How much did Lisa earn?
Word ProblemsUnderstand
Julie =$25Lisa x 5= Julie
PlanJulie ($25)/ 5= Lisa
Solve$25/ 5= $5
Lisa= $5