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Time
Sheet
Unit Equivalent to
1 min 60s r.-io 2-1
1 hour 60 min
t /[
1 day 24 h
1 week 7 days

1 mth 28-31 days
Digital clock Analogue clock
12 months or 365 days, but a
lyr We can convert the amount of time from one
leap year has 366 days.
unit to another.
1 decade lOyr
s
1 century 100 yr 1 h = 60 min 1 min = 60
A time interval is the duration of time between two events.
0 75
? ?
1-5
R - 00 45
10 30
GO 45 1045 11 15
24-hour clock 12-hour clock 24-hour clock 12-hour clock
00 00 12 00 midnight (start) 15 00 3 00 p.m.
01 00 1 00 a.m. 16 00 4 00 p.m.
02 00 2 00 a.m. 17 00 5 00 p.m.
03 00 3 00 a.m 18 00 6 00 p.m.
06 00 6 00 a.m. 19 00 7 00 p.m.
10 00 10 00 a.m. 20 00 8 00 p.m.
11 00 11 00 a.m. 21 00 9 00 p.m.
12 00 12 00 p.m. (noon) 22 00 10 00 p.m.
13 00 1 00 p.m. 23 00 11 00 p.m.
14 00 2 00 p.m. 24 00 12 00 midnight (end)

Perimeter Area
The perimeter of a figure is the total Area is a measure of the amount of space that a flat
length around the edge of the figure. surface covers. The area of a figure is the number of
square units contained within the figure.
Quadrilateral Perimeter
Quadrilateral Area
Rectangle
Rectangle
2 x(/ + b)
/ X b
_J
Square

Square
4 X /
/ IX I