Division.

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Presentation transcript:

Division

Division evenly groups each between remainder divisor Repeated subtraction average share quotient divide

24 ÷ 6 = 4 Division Calculation Divided by equals quotient dividend divisor

Sharing using objects 12 ÷ 2= 6 We can work this out by splitting 12 teddy bears into 2 groups. This will give us our answer 6.

One half

Halving Half: 16 = 8 Half: 2 = 1 4 = 2 6 = 3 5 + 3 = 8

A quarter as a fraction looks like this: One quarter A quarter as a fraction looks like this: It means that 1 out of the 4 pieces has been coloured, or if the item is food, half could have been eaten.

1 third as a fraction looks like this: One third 1 third as a fraction looks like this: It means that 1 out of the 3 pieces has been coloured, or if the item is food, half could have been eaten.

Repeated Subtraction 6 = -2-2-2 12= -3-3-3-3 30= -5-5-5-5-5-5 6 ÷ 2 = 3 12= -3-3-3-3 30= -5-5-5-5-5-5 Can you write the division sentences for these two repeated subtractions?

Arrays 2 x 3 = 6 6 ÷ 2 = 3 3 x 2 = 6 6 ÷ 3 = 2

Multiplication and division facts When multiplying and dividing you often use the same numbers . Below are some examples of this. 5x10=50 10x5=50 50÷5=10 50÷10=5 2x4=8 4x2=8 8÷2=4 8÷4=2 5x2=10 2x5=10 10÷2=5 10÷5=2 3x4=12 4x3=12 12÷3=4 12÷4=3

Multiplication Triangles 63 9x7=63 7x9=63 63÷7=9 63÷9=7 ÷ ÷ 21 9 7 x ÷ ÷ 3x7=21 7x3=21 21÷3=7 21÷7=3 7 x 3

Division by grouping 32÷4=8

Division by grouping 27÷3=9 3 3 3 3 3 3 3 3 3

Division by grouping 25÷3=8r1 3 3 3 3 3 3 3 3 1

Division by chunking 78 ÷ 6 = 13 60 18 10 + 3 =13

Division- short formal method 6 7 8 1 3 1 1 3 r1 6 7 9 1 1 2 .5 6 7 5.0 1 3

Long Division by chunking 312 ÷ 12 = 26 72 20 + 6 = 26

Long Division by chunking 12 312 -240 (20 x 12) 72 -72 (6 x 12)