IXL | Use strip diagrams to represent and solve multi-step addition and subtraction word problems

Eliana made a sandcastle and then decorated it with 38 shells. She used 14 yellow shells and 18 orange shells. The rest of the shells she used were pink.

Which diagram can be used to find

the number of pink shells Eliana used to decorate the sandcastle?

How many pink shells did Eliana use?

pink shells

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Learn with an example

question

Eliana made a sandcastle and then decorated it with 38 shells. She used 14 yellow shells and 18 orange shells. The rest of the shells she used were pink.

Which diagram can be used to find

the number of pink shells Eliana used to decorate the sandcastle?

How many pink shells did Eliana use?

pink shells

solution

Start by listing the information given in the problem.

In all, Eliana used 38 shells.
She used 14 yellow shells.
She used 18 orange shells.
The remaining
p
shells she used were pink.

This diagram matches the problem.

total shells

yellow

orange

pink

To find

it can help to simplify the diagram. First, add 14 and 18 to find the combined number of yellow shells and orange shells Eliana used.

So, you can redraw the diagram like this.

total shells

yellow and orange

pink

Now, subtract to find

–

Eliana used 6 pink shells.

$Confetti$

Excellent!

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Questions
answeredQuestions

Time
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hr	min	sec
00	00	04

SmartScore
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Teacher tools

Work it out

Not feeling ready yet? These can help:

R.1Use models to solve addition and subtraction word problems - up to 100

I.3Add two numbers up to four digits: word problems

J.3Subtract two numbers up to four digits: word problems

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