Page 26 - 01-Yr5_Front cover-ccp.indd

II

[!] a Check that the length of this pencil is 5 inches to the nearest half-inch. "'

·. . ..:
••• "!!-. -
•·o;;m·
"":i-i
I•._ I

b Check that the width of this open book is 1 foot 2t inches
to the nearest half-inch. .
: .. • • • I ~
Choose 6 lengths shorter than your ruler
There are 12 inches in
to estimate, then measure, in metric
a foot. Use 'ins' and 'ft'
and Imperial units. as shortened ways to
i.t~ •.1 I
~""r. write 'inches' and 'feet'.
Record on a table like this.

Metric units Imperial units
Estimate Measurement Estimate Measurement
(centimetres) (nearest centimetre) Item measured (inches) (nearest half-inch)

..
[!] Rule lines of these lengths. Write the length on top of each line. :.

a 15cm b 175 mm c 4ins d 25mm e 12·5cm f 2 ins
g Sins h 100mm 5cm 6ins k ?ins · 1 1 in ~... ..J ::r..
-.· ... -:. .....
-
.
_. . . ~·: . -...... --. fi.
"- .
Write which pairs of lines are
::::: means 'is almost equal to'
almost equal in length.
Like this: Line a (15 cm) ::::::::: line • (• ins). ---=-o:r=----
@J Copy and complete.

1 ft is about the same length as • cm.

I STEPS 5:5