Addition
5
10-5=
5
9x1=
9
12/6=
2
Calculate the perimeter of the square:
Measurements: 4cm
16cm
Formula: 4a or a+a+a+a
4(4)=16cm or 4+4+4+4=16cm
16+4=
20
36-10=
26
6x3=
18
32/4=
8
Calculate the perimeter of the rectangle:
Side measurements: Width=3cm, Length=18cm
42cm
Formula: 2L+2W
2(18)+2(3)
=36+6
=42cm
23+9=
32
64-16=
48
54
36/3=
12
Calculate the perimeter of the isosceles triangle:
Measurements:
Side a: 15cm
Side b: 36cm
66cm
Formula: 2a+b
2(15)+36
=30+36
=66cm
67+24=
91
88-59=
29
45x18=
810
108/5
21 R6
Calculate the area of the triangle:
Measurements: 3mm, 16mm
24mm
A=bxh/2
=3x16/2
=48/2
=24mm
117+333=
450
102-45=
57
306x36=
11,016
252/84=
3
Calculate the area of a trapezoid
Measurements: a= 16m b= 23m h= 4m
78m
A=1/2(a+b)h
=1/2(16+23)4
=1/2(39)4
=78m