1. Y3 Multiplication Workshop
First and foremost I would like to say thank you for coming along. Your interest in your child’s learning really does make a difference.

2. Multiplication vocabulary
Key vocabulary: groups of, lots of, times, array, altogether, multiply, count, multiplied by, repeated addition, commutative, equal groups, times, partition, grid method, multiple, product.

3. On tables: counters, straws, whiteboards, pens, numicon, cuisinaire , pyramids, multiplication grids.

4. Key skills for multiplication:
When arriving Y3 children should already recall and use multiplication facts for the 2 ,5, and 10 multiplication tables.
On leaving Y3 children should also recall and use multiplication facts for the 3,4 and 8 multiplication tables.
* Multiply whole numbers by 10 and 100.

5. Using repeated addition
4x6=24
6x4=24
9x4= x9=36
Understand that multiplication is commutative.

6. Bead strings numicon cuisinaire Straws numberlines counters
Equipment

7. Use a chosen method to calculate Challenge 1 8x4= Challenge 2 6x8= Challenge 3 14x4

8. 9x4= x9=36
36÷4= ÷9=4
Can you draw an array and write 2 corresponding multiplications and divisions: Challenge 1 – 4x3= Challenge 2 4x8=
Challenge 3- We need 32 chairs set out in the hall; how many ways can they be set out. You must PROVE your answers.

9. Solve missing number equations using the inverse operation
 x 5 = x  =  x  = 32
Solve missing number equations using the inverse operation
What equipment might you use?
Solve the above.

10. 20 4 5 32 4 8 18 3 6 32 8 4 32 2 16
Answers 32 16 2 32 4 8

11. 10x3= 30
3x3=9
30+9=39

12. Bead strings numicon cuisinaire
Straws numberlines counters
Equipment

13. Written multiplication
Introduce the grid method X 10 3 30 9
Introduce the grid method with children physically making an array to represent the calculation (e.g. make 8 lots of 23 with 10s and 1s place value counters), then translate this to grid method format

14. Can you calculate:
Challenge 1 – 4x12= using arrays, equipment and multiplication grid.
Challenge x24= arrays and multiplication grid -may need some support.
Challenge Max was building a model go- kart. The instructions said he needed 8 lengths of string. Each length was 24cm. What total length of string did Max need. Prove and explain your answer.

15. Challenge 1 – 4x12= 48 Challenge 2 4x24= 96 Challenge 3 8x 24= 192 X10 2 4 40 8
40+8=48 X 20 4 80 16
80+16=96 X 20 4 8
160 32
160+32=192