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
EnVision Math
Topic 4:
Lesson 4-3
*Use after 4-1, before 4-2 and 4-4
Division Properties and Rules
2010-11
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
What operations can I use to solve word problems?
division
24 ÷ 3 = 8 lollipops
Topic 4:
each, equal
20 ÷ 5 = 4 shelves
, per
dividend
divisor
quotient
dividend
divisor
quotient
divisorquotient
dividend
What are some rules
for division?
1 x 47
385 x 1Any number x 1
equals that number.
86 x 0
0 x 4,582Any number x 0
equals 0.
4 x 7 = 7 x 4
54 x 2 = 2 x 54You can multiply numbers in any
order and still get the same answer.
Start with 10 cubes.
Separate your 10 cubes into 10 equal groups.
How many cubes are in each group?
10 ÷ 10 = 1
Start with 6 cubes.
Separate your 6 cubes into groups of 6.
How many groups of 6 can you make?
6 ÷ 6 = 1
10 ÷ 10 = 1
6 ÷ 6 = 1
Any number divided by itself equals 1.
Start with 10 cubes.
Separate your 10 cubes into 1 equal group.
How many cubes are in each group?
10 ÷ 1 = 10
Start with 6 cubes.
Separate your 6 cubes into groups of 1.
How many groups of 1 can you make?
6 ÷ 1 = 6
10 ÷ 1 = 10
6 ÷ 1 = 6
Any number divided by 1 equals that number.
Start with 0 cubes.
Separate your 0 cubes into 10 equal groups.
How many cubes are in each group?
0 ÷ 10 = 0
Start with 0 cubes.
Separate your 0 cubes into groups of 6.
How many groups of 6 can you make?
0 ÷ 6 = 0
0 ÷ 10 = 0
0 ÷ 6 = 0
0 divided by any number equals 0.
Start with 10 cubes.
Separate your 10 cubes into 0 equal groups.
How many cubes are in each group?
Start with 6 cubes.
Separate your 6 cubes into groups of 0.
How many groups of 0 can you make?
10 ÷ 0
6 ÷ 0
You cannot divide any number by 0!
that number36 ÷ 1 = 36 529 ÷ 1 = 529
142 ÷ 42 = 1 237 ÷ 237 = 1
00 ÷ 56 = 0 0 ÷ 778 = 0
08 ÷ 0 66 ÷ 0
7 ÷ 7= 5 ÷
5
0 ÷ 5< 3 ÷
1
4 ÷ 1> 4 ÷
4
6 ÷ 6> 0 ÷
4
9 ÷ 1> 4 ÷
1
3 ÷ 3< 6 ÷
1
0 ÷ 3= 0 ÷
8
0 ÷ 5< 5 ÷
5
7 ÷ 1> 0 ÷
6
6 ÷ 1< 8 ÷
1
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