We can make:
1 tens and 18 ones.
It is given that:
I have 28 cubes. how many ten and ones i can make.
One simple way of doing so is:
making 2 tens and eight 1.
( since on adding this it would give:
2 tens=2×10=20
and eight 1=8×1=8
so, 20+8=28)
But we have to choose some other method of making 28.
so we will make:
1 tens and eighteen ones.
( Since 1 tens=1×10=10
and eighteen ones=18×1=18
so,
10+18=28)