# Pyramid Sums:3 Levels

LAMINATE IF POSSIBLE
PYRAMID   S UMS:   3   L EVELS
Now   y ou   t ry
18
7   +   1 1   =   1 8
3   +   4   =   7
7
11
4   +   7   =   1 1
Start   a t   t he   b ottom   a nd
3
4
7
work   u p
OR
Start   a t   t he   t op   a nd
20
work   d own
20   c an   b e   s plit   i nto
15
5
15   a nd   5
5   c an   b e   s pilt   i nto   4
11
4
1
and   1
15   -­‐   4   =   1 1
Ways   t o   f ill   i n   n umbers
2. Roll   2   n ormal   d ice.   R oll   a   1 -­‐20   d ice.   P ut   o ne
3. Close   y our   e yes.   C hoose   3   r andom   n umbers   f rom
4. Choose   3   r andom   n umeral   c ards.   P ut   o ne
in   t he   b ottom   o f   t he
1. Roll   3   d ice.   P ut   o ne   n umber   i n   e ach   b ox
number   i n   e ach   b ox
a   1 00   c hart.   P ut   o ne   n umber   i n   e ach   b ox
number   i n   e ach   b ox
pyramid
Ways   t o   f ill   i n   n umbers
1. Roll   3   d ice.   A dd   t hem   t ogether.   P ut   t he   n umber
2. Roll   2   n ormal   d ice.   R oll   a   1 -­‐20   d ice.   A dd   t hem
3.   C hoose   1   r andom   n umber   f rom   a   1 00   c hart   t hat
4. Choose   1   r andom   n umeral   c ard.   P ut   t he   n umber
in   t he   t op   o f   t he
in   t he   t op   b ox
together.   P ut   t he   n umber   i n   t he   t op   b ox
is   b igger   t han   5 0.   P ut   t he   n umber   i n   t he   t op   b ox
in   t he   t op   b ox
pyramid
South   A frican   N umeracy   C hair   P roject   2 015