Mixed set on extending multiplication

Lesson

Practice

Lesson

We've already looked at how we can use our knowledge of the multiplication tables to multiply large numbers and to multiply small decimal numbers.

Now we are going to extend that idea and look at some questions that have a combination of large and small numbers. It's really important to think about place value with these questions, and you may find sketching out a place value table will help.

Worked Examples

Question 1

If $2\times8=16$2×8=16, what is $20\times8$20×8?

Question 2

Question 3

Outcomes

6.NN2.05

Multiply whole numbers by 0.1, 0.01, and 0.001 using mental strategies

6.NN2.06

Multiply and divide decimal numbers by 10, 100, 1000, and 10 000 using mental strategies (e.g.,“To convert 0.6 m^2 to square centimetres, I calculated in my head 0.6 x 10 000 and got 6000 cm^2.”)