What do you notice about
the number sentences in
Questions A and B? (They are
the same number sentences,
just different parts are
missing and the numbers are
in a different order.)
What do you notice about
the number sentences in
Questions C and D? (They are
the same number sentences,
just different parts are
missing.)
How can you use your
answers in Questions C and
D to answer Question E?
(Possible response: 4 is more
than three so that means the
other part has to be one less
than 5. So, 4 + 4 = 8.)
