EnVision Math Topic 4: Lesson 4-3 *Use after 4-1, before 4-2 and 4-4 Division Properties and Rules
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Transcript of EnVision Math Topic 4: Lesson 4-3 *Use after 4-1, before 4-2 and 4-4 Division Properties and Rules
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EnVision Math
Topic 4:
Lesson 4-3
*Use after 4-1, before 4-2 and 4-4
Division Properties and Rules
2010-11
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Rachel and Anjoline Amy and Kenya
Lyndsay and Aliyah Drew and Tim
Emma and Sydney Anthony and Michael
Gia and Haylee Myles and Jadon
Noelle and Mackenzie Fitz and Shimell
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What operations can I use to solve word problems?
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division
24 ÷ 3 = 8 lollipops
Topic 4:
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each, equal
20 ÷ 5 = 4 shelves
, per
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dividend
divisor
quotient
dividend
divisor
quotient
divisorquotient
dividend
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What are some rules
for division?
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1 x 47
385 x 1Any number x 1
equals that number.
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86 x 0
0 x 4,582Any number x 0
equals 0.
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4 x 7 = 7 x 4
54 x 2 = 2 x 54You can multiply numbers in any
order and still get the same answer.
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Start with 10 cubes.
Separate your 10 cubes into 10 equal groups.
How many cubes are in each group?
10 ÷ 10 = 1
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Start with 6 cubes.
Separate your 6 cubes into groups of 6.
How many groups of 6 can you make?
6 ÷ 6 = 1
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10 ÷ 10 = 1
6 ÷ 6 = 1
Any number divided by itself equals 1.
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Start with 10 cubes.
Separate your 10 cubes into 1 equal group.
How many cubes are in each group?
10 ÷ 1 = 10
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Start with 6 cubes.
Separate your 6 cubes into groups of 1.
How many groups of 1 can you make?
6 ÷ 1 = 6
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10 ÷ 1 = 10
6 ÷ 1 = 6
Any number divided by 1 equals that number.
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Start with 0 cubes.
Separate your 0 cubes into 10 equal groups.
How many cubes are in each group?
0 ÷ 10 = 0
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Start with 0 cubes.
Separate your 0 cubes into groups of 6.
How many groups of 6 can you make?
0 ÷ 6 = 0
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0 ÷ 10 = 0
0 ÷ 6 = 0
0 divided by any number equals 0.
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Start with 10 cubes.
Separate your 10 cubes into 0 equal groups.
How many cubes are in each group?
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Start with 6 cubes.
Separate your 6 cubes into groups of 0.
How many groups of 0 can you make?
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10 ÷ 0
6 ÷ 0
You cannot divide any number by 0!
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that number36 ÷ 1 = 36 529 ÷ 1 = 529
142 ÷ 42 = 1 237 ÷ 237 = 1
00 ÷ 56 = 0 0 ÷ 778 = 0
08 ÷ 0 66 ÷ 0
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7 ÷ 7= 5 ÷
5
0 ÷ 5< 3 ÷
1
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4 ÷ 1> 4 ÷
4
6 ÷ 6> 0 ÷
4
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9 ÷ 1> 4 ÷
1
3 ÷ 3< 6 ÷
1
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0 ÷ 3= 0 ÷
8
0 ÷ 5< 5 ÷
5
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7 ÷ 1> 0 ÷
6
6 ÷ 1< 8 ÷
1
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Kenneth has 22 math problems to do for homework. He has 12 problems done. How many more problems does he have left? If he completes 1 problem every minute, how many more minutes does he have to work?
________________________________________22 – 12 = 10 problems 10 ÷ 1 = 10 minutes