Page 63 - 01-Yr5_Front cover-ccp.indd

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New weights for old
• Stones and pounds • • I bathroom scales !
[iJ • Weigh yourself and five friends. QJ Copy and complete this table. METRIC CONVERSION CHART
16 ounces (oz)= 1 pound (lb) Metric Imperial
Remember to estimate first. 14 pounds (lb) = 1 stone 50g-- 1·8oz
• Record your weights using metric and 8 stones = 1 hundredweight (cwt) i quarter pound= 4 ounces {!-lb= 4oz)
1 half pound = 100g L:>"_ 4 ,_:.. 3·5oz
Imperial units on a table like this.
1 pound 1509 -- 5·3oz
r---;l~e~-iHl ·r i:le Cric Before metrication. school children 2009 V-Ig--a;;. 7·0oz
calculated using Imperial units, 2509 -- 8·8oz
l1earesr.. - e.g. changing pounds to stones [I] Use the conversion chart to find the
Kilogr3ru 300g --10-7oz
and pounds. weight in grams of: d
350g --12·4oz
_.......~ 400g --14·2oz
[3:J Calculate the weight of these people 450g tr,~!.!--- ,.,., 15·9oz
in stones and pounds 500g --1lb1 oz
16oz jar of mormolode
1 lb bog of fruit and nuts
.If
t lb bog of sweets
m True or false? Use the conversion chart to check these statements.
a t lb is just over 100 g. b t lb rounds up to 500 g.
c 1 lb is between 400 g and 450 g. d 2 lb will be just under 1 kg
a 152 lb b 39 lb c 87 lb d 288 lb e 109 lb t3:J Copy and complete these with approximate 'rounded' answers.
m Which of the people above weighs a 101b ='= •g b • lb ::: 3 kg c 2 oz ::: • g
more than 1 cwt? d f lb ::: •g e •oz ='= 250g f16oz ::: •kg
t3:J Write which of these 3 statements is correct. • ) and b Kilogram:;
· 6 and 7 Kilogra ms
rrztr
· ? 3.!id 8 kilogrl:ilms . 11111111 Is this statement true or false?
Now try page 45. 1 Explain what you think
rn rn

Practical: estimating and weighing self and five friends, recording weights 1 quarter pound = 4 ounces ( t lb = 4 oz)
in metric and Imperial units.
1 half pound = 8 ounces ( t lb = 8oz)
[g] 1 pound= 16 ounces (1 lb= 16 oz)

a 10st 121b b 2 st 11 lb c 6st 31b d 20st Bib e 7 st 11 lb [!]
00 ~
a 454g a true a 101b = 5kg
b 227g b false b 71b = 3kg
a and d weigh more than 1 cwt.
c 113 g c false c 2oz = 60g
d 340 g d true d fib= 340g
A stone is between 6 and 7 kilograms. e qoz = 250g

f 16 oz = 0·5 kg

True, because 454 g + 16 = 28·375 g.