Multiplication Practise

Think about what would be the best strategy then have a go at practising with the following problems.

5 x 84 =        

9 x 17 =

8 x 45 =

78 x 5 =

97 x 4 =

3 x 14 =

4 x 33 =

5.8 x 8 =

9 x 12.4 =

4.2 x 4 =

8.9 x 4 =

Get someone at home to write you some new problems so you can keep practising.
Also check out Room 11's blog. They have videos of kids explaining how to use all the strategies.

Multiplication Strategies Revision

Multiplication

• Place Value Strategy

(Good for problems that have multiple digit numbers that end in 1, 2, 3, 4, 5)

Eg. 6 x 15 = (6 x 10) + (6 x 5)

= 60 + 30

= 90

• Rounding and Compensating Strategy

(Good for problems that have multiple digit numbers that end in 6, 7, 8, 9)

Eg. 7 x 19 = (7 x 20) - (7 x 1)

= 140 - 7

= 133

• Doubling and Halving Strategy (Can also be applied as Tripling and Thirding)

E.g 5 x 46 = 10 x 23  (Double the ‘5’, and halve the ’46’)

= 230 

Or. 3 x 24 = 9 x 8     (Triple the ‘3’ and third the ’24’)