Easy Addition Facts Worksheet Page 69
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75A69
Hard Addition: No Strategy or The Left Over Facts
Only a few facts remain. You can address these facts in one of two ways. There are only
a few, so you can focus on these as ones that students memorize. This simply requires
repeated drill and practice. You can also show students the strategy of “doubles plus 2.”
For example, we can think of 4 + 6 as 4 + 4 + 2. Ten frames enable students to see this,
but we caution that this strategy may not work for all students.
A Ten Frame for 4 + 6
Add 4
more
Add 2
more
Demonstrating the Strategy
You can use the tens frame to show doubles plus 2 facts. In the example above, you
would have students identify how many (4 in this case). “We have 4, and now we are
going to add 6 more. We can break 6 into 4 plus 2. I add the 4, so 4 + 4 is 8. Now I add
2 more, and that gives me 10. 4 + 6 = 10. That’s the same as 4 + 4 + 2. Notice the
pattern.”
General Guidelines
Remember, use the first page of the facts set to talk about the strategy. Give students
enough time to apply the strategy to the facts. For the remaining pages, use the mastery
criterion – at least 35 correct facts out of 40 in two minutes. Duplicate fact sheets if you
need to in order to give students enough practice to meet the mastery criterion. Also,
look over student sheets to see if particular facts are difficult for students. If so, provide
even more practice on these facts. Also, if you use the double plus 2 strategy with
your students, you will still have to have students memorize the 6 + 3 fact. It doesn’t
fit a strategy easily.
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