Multiplication - Notes from our Parents Meeting

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x Key Stage 1

Reception

Count in 2s, 5s and 10s

Vocabulary
Double

Year 1

Repeated addition in 2s, 5s, 10s.

Vocabulary
Lots of, groups of
Times, multiply, multiplied by
Multiple of
Once, twice, ..ten times

Year 2

Know by heart the 2 and 10 times tables
Calculations set out horizontally    3 x 6 = 18

Vocabulary - As for year 1 plus
Repeated addition
Array
Row, column

 

Key Stage 2

Year 3

Multiplication of TU by U using partitioning  (grid method)
 

23 x 4 20 3  
4 80 12 80 + 12 = 92

Know by heart the 2, 5 and 10 times tables

Vocabulary - As for year 2 plus
Product

Year 4

Same method as for year 3 but extended to HTU x U 

223 x 4 200 20 3  
4 800 80 12 800 + 80 + 12 = 892

 To multiply by 5, multiply by 10 and divide by 2

Know by heart the 2, 3, 4, 5 and 10 times tables and derive the related division facts

Vocabulary - As for year 3 plus
factor
inverse

Year 5

Multiply any positive integer up to 10000 by 10 and 100.  NB Move 1 or 2 places to the left NOT add a nought at the end!!
Standard short multiplication of HTU x U
Multiplication of TU x TU using grid method
Know by heart all multiplication facts up to 10 x 10 and derive the related division facts

Vocabulary - As for Year 4

Year 6

Multiply decimals mentally by 10 and 100 and integers by 1000.  NB Move 1, 2 or 3 places to the left NOT add a nought at the end!! The decimal point does not move.
Short multiplication and division of numbers involving decimals
Long multiplication of a three digit by a two digit integer using grid method at first.

Vocabulary - As for Year 5