Page 117 - STEPS MATHEMATICS 4A

1 ,:*
jr litre calibrated jug,
Plasticine, yoghurt pots

Use a jug, water and Plasticine.

a Start with 300 ml
of water in the jug.
b Make a ball of Plasticine
which you estimate will make
the water level rise to 350 ml
when you put it in the jug. J- ;',-'-
c Check your estimate. 'V
d Add or remove Plasticine
until you get it right. ,.*
e Make another ball of Plasticine ' •*'•
in the same way to make
the water level rise to 500 ml.

Use 3 identical yoghurt pots..

a Fill one of the pots with water.
b Share the amount in the full pot so that i
all three pots contain the same amount.
c Write how you did it.

Write true or false for each of these statements.

a 250ml < i of a litre b 1 i litres = 1400ml
c & of a litre = 100ml d 800ml > f of a litre
e 50% of a litre < 500ml f A milk bottle holds less than 100ml.

Write the best estimate of the capacity
of these things.

a teaspoon 20ml 10ml 5ml i
b teacup 50ml 200ml 600ml
c thimble 10ml 5ml . 2ml :
d. yoghurt pot 10ml 50ml 150ml
e egg cup 5ml 50ml 100ml
f bath 1 litre 100ml 1000 litres

STEps4a:35