7.2
Using the Associative Property of Addition
with Three Whole Numbers
2.Figure out the total. Write an addition sentence to show
how you added.
a.
How many bugs are there in total?
b.
How do you know?
I know there
are 12 because
6 + 4 is 10
and 2 more are 12.
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f.
b.
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Step Ahead
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ORIGO Stepping Stones 1 • 7.2
© ORIGO Education.
d.
© ORIGO Education.
c.
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1.Draw
to show two groups that make 10. Write an
addition sentence to show how you add to find the total.
a.
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c.
What addition sentence could
you write to show how you added?
Step Up
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Write three different addition sentences to match
this picture.
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ORIGO Stepping Stones 1 • 7.2
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