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