Birthday Cakes I am learning to use multiplication

Birthday Cakes I am learning to use multiplication to find a fraction of a set. of 16 = ? 4 20 = 4 of …….

Five people are sharing a birthday cake. There are 30 pebbles spread evenly around the cake. How many pebbles are on each fifth of the cake? of 30 = ? Imagine those 30 pebbles being shared evenly around the cake. Your multiplication facts might 6 = 30) help you. (5 X …. We can check your answer by evenly sharing out the pebbles. So of 30 = 6

Four people are sharing a birthday cake. There are 16 pebbles spread evenly around the cake. How many pebbles are on each quarter of the cake? of 16 = ? Imagine those 16 pebbles being shared evenly around the cake. Your multiplication facts might 4 = 16) help you. (4 X …. We can check your answer by evenly sharing out the pebbles. So of 16 = 4

Now let’s try some questions where we know how many pebbles are on one piece and we need to work out how many are on the whole cake. You can see that the cake to the right has 6 pebbles on one quarter of the cake. of ? = 6 We can use our addition facts to help us work out the answer. 6 + 6 + 6 = 24 24 = 6 of …… We could have used our multiplication facts instead. Total number of 4 X 6 = 24 pebbles on cake. Pieces of cake Number of pebbles on one piece

You can see that the cake below has 3 pebbles on one fifth of the cake. of ? = 3 We can use our addition facts to help us work out the answer. 3 + 3 + 3 = 15 15 = 3 of …… We could have used our multiplication facts instead. Total number of 5 X 3 = 15 pebbles on cake. Pieces of cake Number of pebbles on one piece

Now try these questions on your own. Click again when you have worked out all your answers. 1) of 16 = ? 4 6) of 20 …. . = 5 2) of 25 = ? 10 7) of 30 …. = 10 3) of 18 = ? 6 8) 35 = 7 of …. 4) of 36 = ? 27 9) 20 = 4 of …. 5) of 32 = ? 16 10) 36 = 9 of …. Need some more practise? Try Pg 20 & 21 of Teacher Tools Fractions, Decimals and Percentages Book Numeracy resources