This guide accompanies the calculation
video clips that can be found at
www.stwilfridssheffield.co.uk
Follow the ‘Children’ link then click
maths resources.
These can be used to support children at
home or even by the children
independently.
Multiplication 10 – Long
method
Multiplication 1 – Repeated Addition
6 x 7 = 42
First, draw a number line showing
7 lots of 6.
 Then add these up using repeated
addition.
 0 add 6 equals 6. 6 add 6 equals
12. 12 add 6 equals 18. 18 add 6
equals 24. 24 add 6 equals 30. 30
add 6 equals 36. 36 add 6 equals 42.
 So 6 multiplied by 7 equals 42.
32 x 19 = 608

First, multiply 32 by 9.
2 x 9 equals 18 (which is 1 ten and 8
units). 30 x 9 equals 270, add 10, equals
280 (which is 2 hundreds and 8 tens). So
32 multiplied by 9 equals 288.
 Then multiply 32 by 10. 32 x 10 equals
320.
 Finally, add the two products.
288 add 320 equals 608.
 So 32 multiplied by 19 equals 608.

Multiplication 2 – Repeated
Addition
Multiplication 9 – Short
method
14 x 7 = 98
52 x 9 = 468
First, draw a number line.
 Then partition 14 and multiply
each part by 7.
 10 x 7 equals 70. 4 x 7 equals
28.
 Finally, use the number line to
add the two products.
 0 + 70 = 70. 70 + 28 = 98.
 So 14 multiplied by 7 equals 98.

First, partition 52 in your head
into tens and units.
 Then multiply each part by 9.
2 x 9 equals 18 (which is 1 ten
and 8 units). 50 x 9 equals 450,
add ten, equals 460 (which is 4
hundreds and 6 tens).
 So 52 multiplied by 9 equals
468.

Multiplication 3 – Grid method
Multiplication 8 – Short
method
7 x 38 = 266
52 x 9 = 468
First, partition 38 into numbers which
are easier to multiply. Write each part in a
grid.
 Then multiply each part by 7.
 10 x 7 equals 70. 10 x 7 equals 70. 10 x
7 equals 70. 8 x 7 equals 56.
 Finally, add the four products.
70 + 70 + 70 + 56 = 266.
 So 7 multiplied by 38 equals 266.

First, partition 52 in your head
into tens and units.
 Then multiply each part by 9.
2 x 9 equals 18. 50 x 9 equals 450.
 Finally, add the two products.
18 add 450 equals 468.
 So 52 multiplied by 9 equals 468.

Multiplication 7 – Short
method
Multiplication 4 – Grid method
7 x 38 = 266
52 x 9 = 468
First, partition 38 into numbers
which are easier to multiply. Write
each part in a grid.
 Then multiply each part by 7.
30 x 7 equals 210. 8 x 7 equals 56.
 Finally, add the two products.
210 + 56 = 266.
 So 7 multiplied by 38 equals 266.

First, partition 52 in your head
into tens and units.
 Then multiply each part by 9.
50 x 9 equals 450. 2 x 9 equals 18.
 Finally, add the two products.
450 add 18 equals 468.
 So 52 multiplied by 9 equals 468.

Multiplication 5 – Grid Method
Multiplication 6 – Grid method
549 x 6 = 3294
23 x 17 = 391
First, partition 23 and 17 into
numbers which are easier to multiply.
Write each part in a grid.
 Then complete the grid using
multiplication. 20 x 10 equals 200. 20 x
7 equals 140. 3 x 10 equals 30. 3 x 7
equals 21.
 Finally, add the four products.
200 + 140 + 30 + 21 = 391.
 So 23 multiplied by 17 equals 391.

First, partition 549 into numbers
which are easier to multiply. Write
each part in a grid.
 Then multiply each part by 6.
500 x 6 equals 3000. 40 x 6 equals
240. 9 x 6 equals 54.
 Finally, add the three products.
3000 + 240 + 54 = 3294.
 So 549 multiplied by 6 equals 3294.
