Year 4 Maths 7.1.21

LO: Use the grid method to multiply.

STARTER

Success Criteria: - Partition the large number.

- Draw a grid.

- Write the numbers into the grid.

- Solve the calculations.

- Add the answers together.

- Write this number at the end of the problem to finish answering the question.

LO: Use the grid method to multiply.

Can you remember how to draw the grid for the grid method?

Where does the multiplication sign go?

Success Criteria: - Partition the large number.

- Draw a grid.

- Write the numbers into the grid.

- Solve the calculations.

- Add the answers together.

- Write this number at the end of the problem to finish answering the question.

LO: Use the grid method to multiply.

Lets work through 14 x 5 together.

X

5

10

4

Success Criteria: - Partition the large number.

- Draw a grid.

- Write the numbers into the grid.

- Solve the calculations.

- Add the answers together.

- Write this number at the end of the problem to finish answering the question.

LO: Use the grid method to multiply.

Lets work through 14 x 5 together.

X

10

4

5

50

20

Success Criteria: - Partition the large number.

- Draw a grid.

- Write the numbers into the grid.

- Solve the calculations.

- Add the answers together.

- Write this number at the end of the problem to finish answering the question.

LO: Use the grid method to multiply.

50 + 20= 70 So 14 x 5= 70 X

10

4

5

50

20

Success Criteria: - Partition the large number.

- Draw a grid.

- Write the numbers into the grid.

- Solve the calculations.

- Add the answers together.

- Write this number at the end of the problem to finish answering the question.

LO: Use the grid method to multiply.

See if you can work out 74 x 3

Success Criteria: - Partition the large number.

- Draw a grid.

- Write the numbers into the grid.

- Solve the calculations.

- Add the answers together.

- Write this number at the end of the problem to finish answering the question.

LO: Use the grid method to multiply.

Success Criteria:

Questions

- Partition the large number.

- Draw a grid.

- Write the numbers into the grid.

- Solve the calculations.

- Add the answers together.

- Write this number at the end of the problem to finish answering the question.

1.13 x 9= 2.71 x 5= 3.56 x 5= 4.23 x 3= 5.89 x 9= 6.63 x 7= 7.75 x 9= 8.13 x 5= 9.28 x 9= 10.53 x 8=

This slide is for if you need some extra help in laying each question out.

LO: Use the grid method to multiply.

Challenge: Write a short set of instructions that would help you to solve 43 x 7 using the grid method.

Success Criteria: - Partition the large number.

- Draw a grid.

- Write the numbers into the grid.

- Solve the calculations.

- Add the answers together.

- Write this number at the end of the problem to finish answering the question.

Answers Starter: = Top row: 6, 9, 12. Second row: 10, 15, 20. Third row: 18, 27, 36 1. 117 2. 355 3. 280 4. 69 5. 801 6. 441 7. 675 8. 65 9. 252 10.424 Challenge: Partition 43 into 40 and 3 and have this across the top of the grid. Place the number 7 beneath the multiplication sign and multiply the numbers across the top with the number 7. Add these together to find your answer.