Recall Multiplication Facts of 2,3,5 and10 (3)

Recall multiplication facts of two, three, five and ten and related division facts (ACMNA056)

LO:

To recall multiplication facts of 2, 3, 5 and 10.

Know:

  • Addition facts
  • How to add
  • Basic multiplication facts

Understand:

  • That multiplication facts can be used to quickly solve numerical problems.

Do:

  • I can recall multiplication facts of 2, 3, 5 and 10.

Multiplication is Repeated Addition

Multiplication is just adding over and over again.

If you look at the picture, if I have 5 groups of 3 that’s the same as 3 + 3 + 3 + 3 + 3, which means that I have 5 lots of 3. 5 x 3 = 15.

In this picture, I have 4 lots of 3 stars.

I can go 3 + 3 + 3 + 3 = 12, or to make it easier and quicker I can go 3 x 4 = 12.

Multiplication as Groups Of

Multiplication can also be groups of.

I can group the flowers into groups of 3. I have 4 groups of 3 which means I have 12 flowers in total.

I can group the apples into groups of 5. I have 5 groups of 5 which means I have 25 apples in total.

2 Times Tables

2 times tables have some very interesting features.

  • They always make even numbers.

  • They always make patterns of 2.

3 Times Tables

3 times tables have some very interesting features.

  • They alternate between odd and even numbers.

  • If an odd number is multiplied by 3 the answer is always odd.

  • If an even number is multiplied by 3 the answer is always even.

  • They always make patterns of 3.

5 Times Tables

5 times tables have some very interesting features.

  • They alternate between odd and even numbers.

  • They always end in 5 or 0.

  • If an odd number is multiplied by 5 the answer is always odd and always ends in 5.

  • If an even number is multiplied by 5 the answer is always even and always ends in 0.

  • They always make patterns of 5.


10 Times Tables

10 times tables have some very interesting features and is probably the easiest to memorise.

  • They are always even numbers.

  • When multiplying any number by 10 all you have to do is add a 0 on the end of the original number.

  • They always make patterns of 10.

Teaching Ideas

Non-Linguistic Representations

ACARA Work Samples

Videos

Two Times Tables

Three Times Tables

Ten Times Tables

All Times Tables