Solving Problems and Puzzles

7/5/05

To recall multiplication facts and derive division facts from the 7

times table 7/5/05

To recall multiplication facts and derive division facts from the 7 times table

1 2 3 4 5 6 7 8 9 10

To recall multiplication facts and derive division facts from the 7 times table

1 2 3 4 5 6 7 8 9 10

7 14 21 28 35 42 49 56 63 70

To recall multiplication facts and derive division facts from the 7 times table

1 2 3 4 5 6 7 8 9 10

7 14 21 28 35 42 49 56 63 70

What is this multiplication fact?

To recall multiplication facts and derive division facts from the 7 times table

1 2 3 4 5 6 7 8 9 10

What is this multiplication fact?

4 x 7 = 28

7 14 21 28 35 42 49 56 63 70

To recall multiplication facts and derive division facts from the 7 times table

1 2 3 4 5 6 7 8 9 10

What is this division fact?

28 - 7 = 4

…………….or

7 14 21 28 35 42 49 56 63 70

To recall multiplication facts and derive division facts from the 7 times table

1 2 3 4 5 6 7 8 9 10

What is this division fact?

28 - 4 = 7

…………….or

7 14 21 28 35 42 49 56 63 70

To recall multiplication facts and derive division facts from the 7 times table

1 2 3 4 5 6 7 8 9 10

Hands up!!

What division facts can you remember?

LO: To solve mathematical problems and puzzles, explain methods and

reasoning.

7/5/05

What fraction of these eight shapes are squares?

Now what fraction of these eight shapes are squares?

½ of the shapes are squares, ½ of the shapes are circles/ Two squares are replaced with two circles. Now 1/3 of the shapes are squares, 2/3 of the shapes are circles.

How many shapes did we start with?

If 1/3 of the total number of shapes were squares what

multiplication table will the total number of shapes be in?

If 1/3 of the total number of shapes were squares what

multiplication table will the total number of shapes be in?

Total 1/3 squares 2/3 circles

3

6

9

12

15

18

21

1/5 of the cubes in this bag are are red and 4/5 are blue. Altogether how many cubes might be in the bag?